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Chemistry / Periodic Table: First 20 Elements

Periodic Table: First 20 Elements

Chemistry20 CardsCreated 10 months ago

This deck covers the first 20 elements of the periodic table, including their atomic number, symbol, atomic mass, and the number of protons, neutrons, and electrons.

Hydrogen

Atomic Number: 1
Symbol: H
Atomic Mass: 1
Protons: 1
Neutrons: 0
Electrons: 1

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Key Terms

Term

Definition

Hydrogen

Atomic Number: 1
Symbol: H
Atomic Mass: 1
Protons: 1
Neutrons: 0
Electrons: 1

Helium

Atomic Number: 2
Symbol: He
Atomic Mass: 4
Protons: 2
Neutrons: 2
Electrons: 2

Lithium

Atomic Number: 3
Symbol: Li
Atomic Mass: 7
Protons: 3
Neutrons: 4
Electrons: 3

Beryllium

Atomic Number: 4
Symbol: Be
Atomic Mass: 9
Protons: 4
Neutrons: 5
Electrons: 4

Boron

Atomic Number: 5
Symbol: B
Atomic Mass: 11
Protons: 5
Neutrons: 6
Electrons: 5

Carbon

Atomic Number: 6
Symbol: C
Atomic Mass: 12
Protons: 6
Neutrons: 6
Electrons: 6

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Periodic Table: First 20 Elements

Term	Definition
Hydrogen	Atomic Number: 1 Symbol: H Atomic Mass: 1 Protons: 1 Neutrons: 0 Electrons: 1
Helium	Atomic Number: 2 Symbol: He Atomic Mass: 4 Protons: 2 Neutrons: 2 Electrons: 2
Lithium	Atomic Number: 3 Symbol: Li Atomic Mass: 7 Protons: 3 Neutrons: 4 Electrons: 3
Beryllium	Atomic Number: 4 Symbol: Be Atomic Mass: 9 Protons: 4 Neutrons: 5 Electrons: 4
Boron	Atomic Number: 5 Symbol: B Atomic Mass: 11 Protons: 5 Neutrons: 6 Electrons: 5
Carbon	Atomic Number: 6 Symbol: C Atomic Mass: 12 Protons: 6 Neutrons: 6 Electrons: 6
Nitrogen	Atomic Number: 7 Symbol: N Atomic Mass: 14 Protons: 7 Neutrons:7 Electrons: 7
Oxygen	Atomic Number: 8 Symbol: O Atomic Mass: 16 Protons: 8 Neutrons: 8 Electrons: 8
Fluorine	Atomic Number: 9 Symbol: F Atomic Mass: 19 Protons: 9 Neutrons: 10 Electrons: 9
Neon	Atomic Number: 10 Symbol: Ne Atomic Mass: 20 Protons: 10 Neutrons: 10 Electrons: 10
Sodium	Atomic Number: 11 Symbol: Na Atomic Mass: 23 Protons: 11 Neutrons: 12 Electrons: 11
Magnesium	Atomic Number: 12 Symbol: Mg Atomic Mass: 24 Protons: 12 Neutrons: 12 Electrons: 12
Aluminum	Atomic Number: 13 Symbol: Al Atomic Mass: 27 Protons: 13 Neutrons: 14 Electrons: 13
Silicon	Atomic Number: 14 Symbol: Si Atomic Mass: 28 Protons: 14 Neutrons: 14 Electrons: 14
Phosphorus	Atomic Number: 15 Symbol: P Atomic Mass: 31 Protons: 15 Neutrons: 16 Electrons: 15
Sulfur	Atomic Number: 16 Symbol: S Atomic Mass: 32 Protons: 16 Neutrons: 16 Electrons: 16
Chlorine	Atomic Number: 17 Symbol: Cl Atomic Mass: 35 Protons: 17 Neutrons: 18 Electrons: 17
Argon	Atomic Number: 18 Symbol: Ar Atomic Mass: 40 Protons: 18 Neutrons: 22 Electrons: 18
Potassium	Atomic Number: 19 Symbol: K Atomic Mass: 39 Protons: 19 Neutrons: 20 Electrons: 19
Calcium	Atomic Number: 20 Symbol: Ca Atomic Mass: 40 Protons: 20 Neutrons: 20 Electrons: 20