Elements up to 30 in English

What is the chemical symbol for Oxygen?

• O

• H

• N

• C

How many electrons does a Carbon atom have?

• 6

• 4

• 10

• 8

Which element has the atomic number 26?

• Iron (Fe)

• Silver (Ag)

• Copper (Cu)

• Gold (Au)

What is the symbol for Gold on the periodic table?

• Ag

• Au

• Pt

• Go

How many protons does a Nitrogen atom have?

• 5

• 10

• 7

• 8

Which element is a noble gas with atomic number 10?

• Krypton

• Argon

• Neon

• Helium

What is the atomic number of Sodium?

• 11

• 13

• 10

• 12

Which element is a metalloid with symbol Si?

• Selenium

• Silicon

• Sulfur

• Silver

How many neutrons does an atom of Helium-4 have?

• 1

• 5

• 2

• 3

What is the symbol for Mercury?

• Ag

• Hg

• Fe

• Mg