Periodic Table: First 20 Elements Quiz

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

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!