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ss7ja [257]
3 years ago
14

Mountains and valleys are some of the features found in the layer of rock at Earth's surface called the

Chemistry
1 answer:
loris [4]3 years ago
5 0

Answer:

Narrow

Explanation:

Narrow

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Atoms start out with the same number of negative charges (electrons), and positive charges (protons). ... Conversely, adding electrons to an atom would result in a negative ion. If you do this enough times, you can make an object positive or negative. Friction is one of the ways to separate charge.

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Isotope : It is defined as the element that have the same number of protons but have the different number of neutrons of each of the atom.

Atomic number is defined as the number of protons or number of electrons.

Atomic number = number of protons = number of electrons

Mass number is defined as the sum of number of protons and number of neutrons.

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