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iragen [17]
3 years ago
7

7) Explain how the atomic number of an element identifies the element.

Chemistry
2 answers:
Lunna [17]3 years ago
7 0

Answer:

Atoms of each element contain a characteristic number of protons. In fact, the number of protons determines what atom we are looking at (e.g., all atoms with six protons are carbon atoms); the number of protons in an atom is called the atomic number.

Explanation:

Lilit [14]3 years ago
4 0

Answer:

The atomic number or proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of every atom of that element. The atomic number uniquely identifies a chemical element. ... The sum of the atomic number Z and the number of neutrons N gives the mass number A of an atom.

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Which of the following elements can form double covalent bonds?
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Answer:

double bond

Explanation:

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Explain why you think learning about the rock cycle will help us better understand the world around us.
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How many molecules are there in 560 grams of CoCl2?​
Marrrta [24]

Answer:

25.89  × 10²³ molecules

Explanation:

Given data:

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Number of moles = 4.3 mol

Avogadro number:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.  The number 6.022 × 10²³ is called Avogadro number.

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25.89  × 10²³ molecules

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