Periodic Table Quiz

What is the atomic number of hydrogen?

• 2

• 3

• 4

• 1

Answer explanation

The atomic number of hydrogen is 1. It is the first element in the periodic table and has only one proton in its nucleus.

Which element has the atomic number 26?

• Silver

• Iron

• Copper

• Gold

Answer explanation

The element with atomic number 26 is Iron. It is not Silver, Copper, or Gold.

What is the atomic mass of carbon?

• 14.01

• 6.02

• 12.01

• 16.00

Answer explanation

The atomic mass of carbon is 12.01. It is the correct choice among the given answer choices.

How many groups are there in the periodic table?

• 18

• 20

• 8

• 12

Answer explanation

There are 18 groups in the periodic table. Each group represents a column of elements with similar properties.

Which element has the chemical symbol 'Na'?

• Nickel

• Nitrogen

• Neon

• Sodium

Answer explanation

The element with the chemical symbol 'Na' is Sodium. Sodium is represented by the symbol 'Na' in the periodic table.

Which element is a nonmetal?

• Hydrogen

• Oxygen

• Iron

• Calcium

Answer explanation

Oxygen is a nonmetal element.

Which element is a metalloid?

• Carbon

• Boron

• Sodium

• Oxygen

Answer explanation

Boron is a metalloid because it exhibits properties of both metals and nonmetals.

Which element is a metal?

• Hydrogen

• Oxygen

• Iron

• Carbon

Answer explanation

Iron is a metal because it is a good conductor of heat and electricity, has a shiny appearance, and is malleable and ductile.

What is the atomic number of gold?

• 47

• 92

• 79

• 63

Answer explanation

The atomic number of gold is 79. It is the correct choice among the given options.

What is the atomic mass of helium?

• 2.00

• 4.00

• 1.01

• 3.00

Answer explanation

The atomic mass of helium is 4.00. It is the correct choice among the given answer choices.