Elements

Identify the element that has an atomic number of 12

• Sodium

• Oxygen

• Carbon

• Magnesium

What element can be found in Group 5, Period 3?

• Potassium

• Phosphorus

• Indium

• Nitrogen

How many electrons has Fluorine got?

• 19

• 9

• 10

How many neutrons has Sodium got?

• 11

• 12

• 23

Which element has the Mass number 20?

• Calcium

• Neon

• Potassium

• Argon

Where on the periodic table is Sodium found?

• Period 3, Group 6

• Group 6, Period 3

• Period 3, Group 1

• Period 1, Group 3

Identify the element from the diagram

• Fluorine

• Beryllium

• Helium

• Lithium

Identify the element from the bohr diagram

• B

• N

• Ne

• Cl

Isotopes are atoms of the same elements that have different numbers of ?

• Protons

• Neutrons

• Electrons

• shells

Identify the element above which has 3 naturally occuring isotopes

• Lithium

• Helium

• Beryllium

• Hydrogen