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What is the symbol, atomic number, # of protons, # of electrons, atomic mass, rounded atomic mass, # of neutrons (show work), and period of: Oxygen, helium, carbon, aluminum, calcium, sodium, potassium, nitrogen, silicon, iron, and hydrogen? Need help soon!

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The atom is the smallest part of a substance that can take part in a chemical reaction.

What is an atom?

The atom is the smallest part of a substance that can take part in a chemical reaction. Let us now address the atoms individually.

Oxygen;

Mass number = 16

Atomic number = 8

Number of protons = 8

Number of electrons - 13

Number of neutrons = 16 -8 = 8

Helium

Mass number = 4

Atomic number = 2

Number of protons = 2

Number of electrons - 13

Number of neutrons = 4 -2 = 2

Carbon

Mass number = 12

Atomic number = 6

Number of protons = 6

Number of electrons - 6

Number of neutrons = 12 - 6 = 6

Aluminum

Mass number = 27

Atomic number = 13

Number of protons = 13

Number of electrons - 13

Number of neutrons =27 - 13 = 14

Calcium

Mass number = 40

Atomic number = 20

Number of protons = 20

Number of electrons - 20

Number of neutrons =40 - 20=20

Sodium

Mass number = 23

Atomic number = 11

Number of protons = 11

Number of electrons - 11

Number of neutrons =23 - 11 = 12

Potassium

Mass number = 39

Atomic number = 19

Number of protons = 19

Number of electrons - 19

Number of neutrons =39 - 19 = 10

Nitrogen

Mass number = 14

Atomic number = 7

Number of protons = 17

Number of electrons - 7

Number of neutrons =14 - 7 = 7

Silicon

Mass number = 28

Atomic number = 14

Number of protons = 14

Number of electrons - 14

Number of neutrons =28 - 14 = 14

Iron

Mass number = 56

Atomic number = 26

Number of protons = 26

Number of electrons - 26

Number of neutrons =56 - 26 = 30

Hydrogen

Mass number = 2

Atomic number = 1

Number of protons = 1

Number of electrons - 1

Number of neutrons =2 - 1 = 1

Learn more about atoms:https://brainly.com/question/1566330

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