Questions and Answers
What is the atomic number of Hydrogen?
1
What is the chemical symbol for Helium?
He
How many protons does Lithium have?
3
What is the atomic mass of Beryllium?
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What is the chemical symbol for Boron?
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What is the atomic number of Carbon?
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How many neutrons does Nitrogen have?
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What is the atomic mass of Oxygen?
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What is the chemical symbol for Fluorine?
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What is the atomic number of Neon?
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How many protons are found in Sodium?
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What is the atomic mass of Magnesium?
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What is the chemical symbol for Aluminum?
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How many neutrons does Silicon have?
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What is the atomic number of Phosphorus?
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What is the atomic mass of Sulfur?
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What is the chemical symbol for Chlorine?
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What is the atomic number of Argon?
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How many protons does Potassium have?
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What is the chemical symbol for Calcium?
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Study Notes
First 20 Elements of the Periodic Table
-
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
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Description
Test your knowledge of the first 20 elements of the periodic table with this quiz. Each question will cover key details such as atomic number, symbol, and atomic mass. Perfect for students learning chemistry!
