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3 years ago

6

Atomic theory explains that all matter is made up of tiny particles called atoms. This scientific theory was developed before sc

ientists could view individual atoms with powerful microscopes. How could the development of a new technology affect this theory?

1 answer:

Andrew [12]3 years ago

7 0

No entiendo inglés lo siento

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The answer to this question is D

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Use F = 1/T as your basis:

Varvara68 [4.7K]

Time=T=8×10^-5s

Now

$\\ \rm\rightarrowtail \nu=\dfrac{1}{T}$

$\\ \rm\rightarrowtail \nu=\dfrac{1}{8\times 10^{-5}}$

$\\ \rm\rightarrowtail \nu=0.125(10^5)$

$\\ \rm\rightarrowtail \nu=12500s^{-1}$

$\\ \rm\rightarrowtail \nu=12500Hz$

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If an element has 20 protons and 20 neutrons in the nucleus of its atoms , what is the mass number of the atom?

Ilya [14]

Answer:

A=z+n

A=20+20

A=40

Explanation:

Not sure if I'm correct but I was taught that mass number is calculated by A=z+n where A is the mass number, z is the proton number and n is the number of neutrons.

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Answer:

a) vf = vi + at

Explanation:

a) vf = vi + at

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