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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

Why is hi a stronger acid than HCl?
United States • science chemistry hcl acid stronger acetic acid acids • • purplerabbit549

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The same reasoning applies for both HBr and HI. These acids are even stronger than HCl because the Br– and I– ions are even larger. As such, the H-Br and H-I bonds are even weaker, and these compounds also readily dissociate in solution.

Subsequently, question is, is sulfuric acid stronger than HCl? In chemistry, both HCl and H2SO4 are strong acids. But what makes the HCl is stronger than H2SO4 is the difference in Basicity of both acids. In contrast, the HCl is monoprotic acid whereas, the H2SO4 is Diprotic acid. Hence,the number of H ions produced by H2SO4 is higher and easily replace with other compounds.

Beside above, why is hi stronger than HCl in acetic acid?

HI and HCl are not stronger than CH3COOH2 , the conjugate acid of acetic acid. HI dissapates more than HCl in acetic acid because the anion I -1 is larger than Cl -1. This makes it possible for more acetic acid molecules to attach to I -1 than Cl -1. This is why HI is stronger than HCl in acetic acid.

Is HCl or HBr stronger?

HBr fumes strongly in moist air. It is one of the strongest mineral acids, with a reducing action stronger than that of hydrogen chloride (HCl). It is extremely soluble in water, forming a strong acid that is available as 48 or 68% solutions.
What angles are congruent in an isosceles trapezoid?
United States • science space and astronomy isosceles trapezoid isosceles trapezoid angles congruent • • sadtiger438

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The base angles (angles formed between non-parallel sides and parallel sides) are equal in an isosceles trapezoid. Diagonals of an isosceles trapezoid are equal in length. The sum of opposite angles in an isosceles trapezoid is 180 degrees.

Also, are isosceles trapezoids always similar? ABC and ?DEF are isosceles, then they are similar. This is not true. Both triangles are isosceles (since within each triangle, there is a pair of congruent angles), but the triangles are not similar (because the angles of one are not congruent to the angles of the other).

Accordingly, what are the properties of an isosceles trapezoid?

Convex polygon Cyclic

Do diagonals bisect angles in an isosceles trapezoid?

Both parallel sides are called bases. Recall that in an isosceles triangle, the two base angles are congruent. The diagonals of an isosceles trapezoid are also congruent, but they do NOT bisect each other. Isosceles Trapezoid Diagonals Theorem: The diagonals of an isosceles trapezoid are congruent.
S

What is SFM in drilling?
United States • science physics sfm rpm computing rate surface feet rate • • silversnake588

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Surface feet per minute. SFM is a combination of diameter and the velocity (RPM) of the material measured in feet-per-minute as the spindle of a milling machine or lathe. 1 SFM equals 0.00508 m/s (meter per second, the SI unit of speed).

Subsequently, question is, what is a good RPM for a drill? Recommended Speeds for Carbide Tipped Holecutters

Size Steel Stainless Steel 11/16 to 13/16 in. 700 - 1000 RPM 300 - 700 RPM 7/8 to 1-3/16 in. 500 - 800 RPM 200 - 450 RPM 1-1/4 to 1-9/16 in. 300 - 600 RPM 175 - 315 RPM 1-5/8 to 2 in. 200 - 500 RPM 120 - 225 RPM
Subsequently, one may also ask, what is SFM cutting speed?

Cutting speed is the speed in linear feet per minute or Surface Feet per Minute (SFM) that a given tooth (flute) on the cutter will be moving when it cuts through the material. All materials have a documented SFM or cutting speed. Think of it like a minimum and maximum speed limit on a highway.

What is the full form of SFM?

SFM Scanning Force Microscopy Academic and Science » Electronics Rate it: SFM Surface Feet per Minute Miscellaneous » Unit Measures Rate it: SFM Simple File Manager Computing » General Computing Rate it: SFM Stewart Finlay Mclennan Community » Famous and Celebs Rate it: SFM Standard Format Markup Computing » General Computing Rate it:
What does the prefix inter mean in biology?
United States • science biological sciences • • yellowkoala130

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What is the hybridization of silicon dioxide?
United States • science chemistry lewis structure silicon atom lewis silicon atom • • greenmouse228

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The answer is C because SiO2 is a network solid (quartz) just like (diamond and graphite) so when you draw it out, its not quite linear at 120, its actually slightly bent and should be at 110.

Furthermore, why is SiO2 tetrahedral? Reason for giant structure of SiO2: In case of SiO2, the size of the silicon atom is much larger than carbon atom. Greater numbers of oxygen atoms can surround silicon atom. But when four oxygen atoms link with one silicon atom then a tetrahedral structure is produced.

Also, what is the shape of silicon dioxide?

It is a 3 dimensional network solid in which each silicon atom is covalently bonded in a tetrahedral manner to 4 oxygen atoms.

What is the Lewis structure for SiO2?

The Lewis structure for SiO2 is fairly straightforward. You will need to create double bonds to acheive octets for all of the atoms. Si is the least electronegative atom and goes at the center of the Lewis structure. For the SiO2 Lewis structure you have a total of 16 valence electrons.
Can you multiply coefficients with different variables?
United States • science physics exponents multiply variables add bases • • goldenfish468

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Multiplying Quantities with Exponents We can multiply two quantities with exponents if they have the same base. To multiply two quantities with the same base, multiply their coefficients and add their exponents. For example, 4(5)5×3(5)2 = (3×4)(5)5 2 = 12(5)7 and 5(2x)2×6(2x)y = (5×6)(2x)2 y = 30(2x)2 y.

Additionally, can you multiply two exponents with different bases? When you multiply expressions with the same exponent but different bases, you multiply the bases and use the same exponent. When you multiply expressions with different bases and different exponents, there is no rule to simplify the process.

Consequently, can you add variables with different coefficients?

Whether you add or subtract variables, you follow the same rule, even though they have different operations: when adding or subtracting terms that have exactly the same variables, you either add or subtract the coefficients, and let the result stand with the variable. For example: Addition.

Can you add exponents with different powers?

Adding exponents and subtracting exponents really doesnt involve a rule. If a number is raised to a power, add it to another number raised to a power (with either a different base or different exponent) by calculating the result of the exponent term and then directly adding this to the other.
What is a joule equal to in terms of kg M and S?
United States • science physics joule joule equals unit work meter • • redkoala489

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The unit of energy in the International System of units(SI). One Joule is equal to one kilogram times square meter oversquare second, in short: 1 J = 1 kgm2/s2.

Furthermore, what unit is kg/m2 s? SI Derived and SI Compatible Units

Derived Unit Measures Derivation newton (N) force kg·(m/s2) pascal (Pa) pressure N/m2 joule (J) energy or work N·m watt (W) power J/s
Accordingly, what are the units that make a joule?

joule. The SI derived unit used to measureenergy or work. One joule is equal to the energy used toaccelerate a body with a mass of one kilogram using one newton offorce over a distance of one meter. One joule is alsoequivalent to one watt-second.

What is a joule per second equal to?

Yes, one Watt is defined as 1 Joule of energyper 1 second. Power is defined as work perunit of time. Power=work donetime needed. The SI units for work andtime are Joules and seconds, respectively. One Wattwas defined as a power of 1 Joule per second.
When was telepathy discovered?
United States • telepathic communication telepathy communication telepathic sensory channels • • heavybutterfly809

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λε, tele meaning distant and πάθος, pathos or -patheia meaning feeling, perception, passion, affliction, experience) is the purported vicarious transmission of information from one person to another without using any known human sensory channels or physical interaction.

Subsequently, question is, what is telepathic communication? Telepathic communication is the transference of thought between minds by some means other than normal sensory channels, like speaking, music, or sound. Telepathic communication can occur in many forms such as words, pictures, ideas, physical sensations, sounds, impressions, feelings, or just a sense of knowing,.

Also know, when was the word telepathy invented?

1882

What does it mean when you have telepathy with someone?

Telepathy defies the concepts of time and space and makes human contact a possibility without the need for verbal confrontation. If you share such a connection with someone, you are sure to come across these signs. You can also sexually arouse them with your telepathic powers.

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Related Information

Why is hi a stronger acid than HCl? United States • science chemistry hcl acid stronger acetic acid acids • • purplerabbit549

What angles are congruent in an isosceles trapezoid? United States • science space and astronomy isosceles trapezoid isosceles trapezoid angles congruent • • sadtiger438

What is SFM in drilling? United States • science physics sfm rpm computing rate surface feet rate • • silversnake588

What does the prefix inter mean in biology? United States • science biological sciences • • yellowkoala130

What is the hybridization of silicon dioxide? United States • science chemistry lewis structure silicon atom lewis silicon atom • • greenmouse228

Can you multiply coefficients with different variables? United States • science physics exponents multiply variables add bases • • goldenfish468

What is a joule equal to in terms of kg M and S? United States • science physics joule joule equals unit work meter • • redkoala489

When was telepathy discovered? United States • telepathic communication telepathy communication telepathic sensory channels • • heavybutterfly809

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Why is hi a stronger acid than HCl?
United States • science chemistry hcl acid stronger acetic acid acids • • purplerabbit549

What angles are congruent in an isosceles trapezoid?
United States • science space and astronomy isosceles trapezoid isosceles trapezoid angles congruent • • sadtiger438

What is SFM in drilling?
United States • science physics sfm rpm computing rate surface feet rate • • silversnake588

What does the prefix inter mean in biology?
United States • science biological sciences • • yellowkoala130

What is the hybridization of silicon dioxide?
United States • science chemistry lewis structure silicon atom lewis silicon atom • • greenmouse228

Can you multiply coefficients with different variables?
United States • science physics exponents multiply variables add bases • • goldenfish468

What is a joule equal to in terms of kg M and S?
United States • science physics joule joule equals unit work meter • • redkoala489

When was telepathy discovered?
United States • telepathic communication telepathy communication telepathic sensory channels • • heavybutterfly809