Atomic structure

A horizontal row of elements in the Periodic Table is called the

• Group

• Period

A vertical column of elements in the Periodic table is called the

• Period

• Group

What is atomic number?

• The number of protons

• The number of neutrons

• The number of protons and neutrons in the nucleus

What is nucleon number?

• The number of protons

• The number of neutrons

• The total number of protons and neutrons in the nucleus

In the Periodic Table, the elements are arranged in the order of

• Proton number

• Nucleon number

What is the chemical symbol for sodium?

• S

• So

• NA

• Na

What is the proton number for sodium?

• 11

• 23

• 12

• 34

What is the nucleon number for sodium?

• 11

• 23

• 12

• 34

The number of neutron in a sodium atom is

• 11

• 23

• 12

• 34

In which Group of the Periodic Table does Sodium belong to?

• I

• II

• III

• IV