Yr 10 Chemistry overview Term 3

1. Which of these is NOT a basic piece of an atom?

• Proton

• Electron

• Quartron

• Neutron

Which sub-atomic particle has a negative charge?

• Proton

• Electron

• Neutron

• All of the aboev

Which of the following particles has the smallest mass?

• Proton

• Neutron

• Electron

• All have same mass

The positively charged parts of an atom are the

• Protons

• Electrons

• Neutrons

• All of the above

Atoms are neutral because:

• Charges of electrons and protons balance out to = 0

• Atoms have the same number of protons and electrons until they react

• Positive charges cancel negative charges

• All of the above

What is a positive ion called?

• Anion

• Polyatomic ion

• Monatomic ion

• Cation

What is a negative ion called?

• Ion

• Anion

• Cation

• Anionical

Why do elements form bonds?

• To get a charge

• So they can make friends

• To become stable by getting a full valence shell

• To become stable by increasing their mass

How many electrons would a Nitrogen ion gain/lose?

• Lose 5

• Lose 3

• Gain 5

• Gain 3

What is the ion formed from Sulphur?

•  $S^{2-}$ 

•  $S^{2+}$  

•  $S^{-6}$  

•  $S^{6+}$