Exploring the First 20 Elements

What is the atomic number of Oxygen?

• 6

• 8

• 10

• 12

Which element has the symbol 'Na'?

• Nitrogen

• Neon

• Sodium

• Nickel

What is the symbol for the element with atomic number 1?

• He

• H

• Li

• Be

Which element is in Group 1 and Period 2 of the periodic table?

• Lithium

• Beryllium

• Boron

• Carbon

What is the name of the element with the symbol 'Cl'?

• Calcium

• Chlorine

• Chromium

• Cobalt

Which element has an atomic number of 10?

• Neon

• Nitrogen

• Nickel

• Neptunium

What is the symbol for the element Beryllium?

• Be

• B

• Br

• Ba

Which element is in Group 18 and Period 1?

• Helium

• Hydrogen

• Neon

• Argon

What is the atomic number of Carbon?

• 4

• 6

• 8

• 10

Which element has the symbol 'K'?

• Krypton

• Potassium

• Calcium

• Phosphorus