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Who was JJ Thomson and what did he discover?

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brownlion377 Discussion Fanatics last edited by

In 1897, J.J. Thomson discovered the electron by experimenting with a Crookes, or cathode ray, tube. He demonstrated that cathode rays were negatively charged. In addition, he also studied positively charged particles in neon gas.
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tinyladybug283 Discussion Fanatics last edited by

Electron Isotope Subatomic particle

Beside above, what was JJ Thomson atomic theory? Summary. J.J. Thomsons experiments with cathode ray tubes showed that all atoms contain tiny negatively charged subatomic particles or electrons. Thomson proposed the plum pudding model of the atom, which had negatively-charged electrons embedded within a positively-charged soup.

Subsequently, one may also ask, when did JJ Thomson discovered the electron?

1897

Who is the father of JJ Thomson?

Joseph James Thomson
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Related Information

How do you calculate dilation?
United States • science physics scale factor factor scale dilation find • • organicbird383

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To create an enlargement with a scale factor of 2: Draw straight lines connecting each vertex to the center of dilation. Use the compass to find the points that are twice the distance from the center of dilation as the original vertices. Connect the new vertices to form the dilated image.

Similarly, whats the opposite of dilation? Theres no single word. The usual phrase is constricted pupils. Incidentally, in fiction people whove taken heroin or related drugs are almost inevitably described as having dilated pupils even though the described drugs cause constriction!

In respect to this, how do u find the scale factor?

To find a scale factor between two similar figures, find two corresponding sides and write the ratio of the two sides. If you begin with the smaller figure, your scale factor will be less than one. If you begin with the larger figure, your scale factor will be greater than one.

What are the properties of dilation?

A dilation is when a shape has kept its orientation but has been changed in size, either getting smaller or getting larger. This is a form of transformation, which is a repositioning of a shape. There are four basic transformations: reflection, rotation, translation, and dilation.
Are all chemicals in a lab considered dangerous?
United States • science chemistry hot glass chemicals laboratory glass unauthorized experiments • • crazyladybug404

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Terms in this set (25)
Hot glass looks the same as cold glass. All chemicals in the lab are to be considered. Return all unused chemicals to their original. Work areas should be kept clean and tidy. Pipets are used to measure and dispense small. Laboratory work can be started immediately.
Beside above, are all unauthorized experiments are prohibited? Any unauthorized experiments are prohibited. Students are not allowed in the laboratory outside of scheduled hours unless an instructor is present. Safety glasses must be worn at all times when in the laboratory. They are available for all chemicals used in the laboratory.

Beside this, why are unauthorized experiments prohibited?

Do not perform unauthorized experiments. Not only is this generally forbidden, but it increases the chance of an accidental mixing of incompatible chemicals. A student doing this in a lab course may be expelled from the laboratory, charged with a crime, and/or receive a failing grade in the course.

Is Hot Glass the same as cold glass?

Remember that hot glass looks the same as cold glass. After heating, glass remains hot for a very long time.
Can the supplement and complement of a given angle ever be the same?
United States • science space and astronomy • • greencat217

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The missing angle measures 103 degrees. Complementary angles form a right angle (L shape) and have a sum of 90 degrees. Supplementary angles form a straight line and have a sum of 180 degrees. If the relationship is given, you can subtract the given angle from the sum to determine the measure of the missing angle.

Also Know, what is the complement of an angle? Two Angles are Complementary when they add up to 90 degrees (a Right Angle). They dont have to be next to each other, just so long as the total is 90 degrees.

Similarly, it is asked, what is the complement and supplement of an angle?

The complement of an angle is what, when added to it, equals 90 degrees (90°). For example, in your problem, 90°-85°=5°. This means that the complement of 85° is 5°, since they add up to equal 90 degrees a right angle. The supplement of an angle is what, when added to it, equals 180 degrees.

What is the supplement of 83?

Two angles are COMPLEMENTS if the sum of their measures is 90 degrees. Two angles are SUPPLEMENTS if the sum of their measures is 180 degrees. The supplement of a 67-degree angle is a 113-degree angle because 67 113=180. The complement of a 83-degree angle is a 7-degree angle because 83 7=90.
What is the angle that measures 180 degrees?
United States • science space and astronomy angle angle measures degree angle measures degrees • • silvergorilla641

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It is equal to one-quarter of a rotation around a circle. A straight line creates a 180 degree angle. It is equal to one-half a rotation around a circle.

Additionally, what is the sum of the measures of the angles in any triangle is 180 degrees? The Triangle Sum Theorem states that the three interior angles of any triangle add up to 180 degrees.

Consequently, what are angle measures?

In geometry, an angle measure can be defined as the measure of the angle formed by the two rays or arms at a common vertex. Angles are measured in degrees ( °), using a protractor.

What is a 45 degree angle look like?

45-Degree Angle. A straight angle measures 180°. An angle can be measured using a protractor, and the angle of measure 90 degrees is called a right angle. In a right angle, the two arms are perpendicular to each other.
What is the name for the compound p4o10 spell out the full name of the compound?
United States • science chemistry phosphorus pentoxide phosphorus compound pentoxide empirical formula • • heavyswan560

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tricyclo[3.3.1.13,7]tetraphosphoxane 1,3,5,7-tetraoxide

Similarly, how do you write p4o10? P4O10 is technically called tetraphosphorus decaoxide, but under normal conditions it only exists as the dimer of P2O5, which is phosphorus (V) oxide, or phosphorus pentaoxide. The chemical name is for P4O10 is Phosphorus Pentoxide.

Also to know, what is the systematic name for p4o10?

Phosphorus pentoxide is a chemical compound with molecular formula P4O10 (with its common name derived from its empirical formula, P2O5). This white crystalline solid is the anhydride of phosphoric acid. It is a powerful desiccant and dehydrating agent.

What is the name of the covalent compound n2o5?

dinitrogen pentoxide
What is the meaning of a waning crescent moon?
United States • science space and astronomy moon crescent moon waning moon crescent waning • • brownlion377

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Waning Crescent Waning refers to the shrinking of the Moons illumination, and Crescent means less than half of the Moon is illuminated. This particular moon cycle signifies surrender.

One may also ask, how does a waxing crescent moon affect us? The waxing crescent phase is the moons first step toward fullness. The waxing crescent moon encourages positivity and faith, so even the most steadfast pessimists may be more likely to leap without a net during this phase.

In this regard, what is a waning moon?

A waning moon is any phase of the moon during the lunar cycle between the full moon and the new moon. When the waning moon is between the full moon and the third quarter, it is called waning gibbous, where gibbous is when the shape of the moon is between a full and half circle.

How does the moon affect people?

The moon, tides and you The human body is about 75 percent water, and so people often ask whether tides are at work inside us. The moon and the sun combine to create tides in Earths oceans (in fact the gravitational effect is so strong that our planets crust is stretched daily by these same tidal effects).
What does 7y mean in math?
United States • science space and astronomy solve variable equation variable equation step • • Sarah

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A monomial is an expression in algebra that contains one term, like 3xy. Monomials include: numbers, whole numbers and variables that are multiplied together, and variables that are multiplied together. Any number, all by itself, is a monomial, like 5 or 2,700. A monomial can also be a variable, like m or b.

Furthermore, how do you solve 8y 48? 8y=48
Step 1 : Pulling out like terms : 1.1 Pull out like factors : 8y - 48 = 8 • (y - 6) Equation at the end of step 1 : Step 2 : Equations which are never true : 2.1 Solve : 8 = 0. Solving a Single Variable Equation : 2.2 Solve : y-6 = 0. Add 6 to both sides of the equation : y = 6.
Besides, what is 4x in algebra?

A Variable is a symbol for a number we dont know yet. It is usually a letter like x or y. A number on its own is called a Constant. A Coefficient is a number used to multiply a variable (4x means 4 times x, so 4 is a coefficient)

How do you solve 4x 5?

4 x − 5 = 5 4x-5=5 4x−5=5. Add 5 to both sides. Simplify 5 5 5 5 5 5 to 1 0 10 10. Divide both sides by 4.
Which cells in the body undergo mitosis?
United States • science biological sciences cells mitosis undergo mitosis undergo cells undergo • • purplewolf566

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Whereas somatic cells undergo mitosis to proliferate, the germ cells undergo meiosis to produce haploid gametes (the sperm and the egg). The development of a new progeny organism is then initiated by the fusion of these gametes at fertilization.

One may also ask, does mitosis occur in all cells? Mitosis is the process in cell division by which the nucleus of the cell divides (in a multiple phase), giving rise to two identical daughter cells. Mitosis happens in all eukaryotic cells (plants, animals, and fungi).

Accordingly, what type of cells undergo mitosis quizlet?

most eukaryotic cells reproduce asexually go through mitosis. sperm and ova (germ cells) do not. what does the n stand for in 2n=46? the amount of chromosomes.

What cells do not use mitosis?

While WBCs do retain their nucleus while in peripheral circulation, most are also what we call terminally differentiated, since they can no longer undergo mitosis. Skeletal muscle can undergo hypertrophy, as each cell gets bigger. But skeletal muscle cells do undergo hyperplasia, since no new cells are generated.

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How do you calculate dilation? United States • science physics scale factor factor scale dilation find • • organicbird383

Are all chemicals in a lab considered dangerous? United States • science chemistry hot glass chemicals laboratory glass unauthorized experiments • • crazyladybug404

Can the supplement and complement of a given angle ever be the same? United States • science space and astronomy • • greencat217

What is the angle that measures 180 degrees? United States • science space and astronomy angle angle measures degree angle measures degrees • • silvergorilla641

What is the name for the compound p4o10 spell out the full name of the compound? United States • science chemistry phosphorus pentoxide phosphorus compound pentoxide empirical formula • • heavyswan560

What is the meaning of a waning crescent moon? United States • science space and astronomy moon crescent moon waning moon crescent waning • • brownlion377

What does 7y mean in math? United States • science space and astronomy solve variable equation variable equation step • • Sarah

Which cells in the body undergo mitosis? United States • science biological sciences cells mitosis undergo mitosis undergo cells undergo • • purplewolf566

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How do you calculate dilation?
United States • science physics scale factor factor scale dilation find • • organicbird383

Are all chemicals in a lab considered dangerous?
United States • science chemistry hot glass chemicals laboratory glass unauthorized experiments • • crazyladybug404

Can the supplement and complement of a given angle ever be the same?
United States • science space and astronomy • • greencat217

What is the angle that measures 180 degrees?
United States • science space and astronomy angle angle measures degree angle measures degrees • • silvergorilla641

What is the name for the compound p4o10 spell out the full name of the compound?
United States • science chemistry phosphorus pentoxide phosphorus compound pentoxide empirical formula • • heavyswan560

What is the meaning of a waning crescent moon?
United States • science space and astronomy moon crescent moon waning moon crescent waning • • brownlion377

What does 7y mean in math?
United States • science space and astronomy solve variable equation variable equation step • • Sarah

Which cells in the body undergo mitosis?
United States • science biological sciences cells mitosis undergo mitosis undergo cells undergo • • purplewolf566