Y8 TT2 2023

What is the charge for atom?

• Positive

• Negative

• Neutral

Atom consists of negative charge particles. What is it called?

• Proton

• Neutron

• Electron

• Nucleon

What is the positive particle called in an atom?

• Proton

• Neutron

• Electron

• Nucleon

What is nucleon?

• Proton + electron

• Proton + neutron

• Proton - electron

• Neutron - proton

It is an atom with 4 proton, how many electrons are there?

• 5

• 6

• 4

• 7

Sodium has nucleon number of 23 and proton number of 11, what is the number of neutron

• 9

• 10

• 11

• 12

What did J.J Thomson discover?

• Proton

• Neutron

• Electron

• None

How many mixtures are there from the ink of forged cheque?

• 0

• 1

• 2

• 3

Ink from forged cheque contains which substance?

• A only

• B only

• C only

• None

Why is pencil used for chromatography?

• Easier to erase

• Insoluble in water

• Soluble in water

• Cheaper