Atomic number
Element name
Atomic mass
Element Symbol
Questions about the periodic table
100

What element has an atomic number of 1?

Hydrogen 

100

What element has a symbol of Au?

Gold

100

What element has an atomic mass of 24.3?

Magnesium 

100

What is the symbol for Oxygen?

O

100

How many groups are in the periodic table?

18

200

What element has an atomic number of 17?

Chlorine

200

What element has a symbol of K?

Potassium 

200

What element has an atomic mass of 22.990? 

Sodium 

200

What is the symbol for Beryllium?

Be

200

How many periods are in the periodic table?

7
300

What element has an atomic number of 10

Neon

300

What element has a symbol of Cu?

Copper

300

What element has an atomic mass of 30.974?

Phosphorus

300

What is the symbol for Silver?

Ag

300

what chemist created the periodic table?

Mendeleev

400

What element has an atomic number of 80

Mercury 

400

What element has a symbol of Rf?

Rutherfordium

400

What element has an atomic mass of 12.011?

Carbon

400

What is the symbol for Thorium?

Th

400

What was the last element discovered?

Nihonium

500

What element has an atomic number of 96?

Curium

500

What element has a symbol of Cm

Curium

500

What element has an atomic mass of 83.798?

Krypton

500

What is the symbol for Manganese?

Mn

500

What is another name for group 8A?

Noble Gases

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