Science G7 Quiz

How many Groups are in the periodic table

• 7

• 118

• 18

• 20

What is the smallest unit of matter?

• molecule
• atom
• cells

Which scientist proposed the first experimental model of the atom?

• Dalton
• Rutherford
• Einstein

Protons are negatively charged particles revolving around the nucleus.

• True
• False

What is the charge of a neutron?

• negative
• neutral
• positive

Which of the following elements is represented by the symbol "K" in NPK fertilizers?

• Nitrogen
• Phosphorus
• Potassium

Who is the first scientist to publish the periodic table

• Mosley

• Mendeleev

• Rutherford

• Robert Hoke

The modern periodic table is based on .................

• Atomic number

• Mass number

• Energy levels filled with electrons

• Atomic number and energy levels filled with electrons

What is the electronic distribution of Hydrogen with 1 atomic number

• K=1
  L=8

• K=1

• K=2

• K=1
  L=5

.................... is from noble gases

• Hydrogen

• Neon

• Nitrogen

• chlorine