Sec 3 Science Chemistry Chemical Bonding Revision Quiz 1

In Chemistry, what can the term "particles" refers to?

When particles attract to each other, a ................................ is formed.

When ions are attracted to each other, what bond is formed?

​ (a)   Ions are formed by either ​ (b)   ​ (c)  

• electrons
• Positive
• losing
• negative
• gaining
• protons
• neutrons

​ (a)   Ions are formed by either ​ (b)   ​ (c)  

• electrons
• Positive
• losing
• negative
• gaining
• protons
• neutrons

Why do atoms lose or gain electrons to form ions?

What is the electronic configuration of sodium atom?

• 2,8,1

• 2,8,8,5

What is the electronic configuration of chlorine atom?

• 2,8,7

• 2,8,8,8,8,1

Which is the best way for sodium to achieve noble gas configuration?

• gain 1 electron

• lose 1 electron

• gain 7 electrons

• lose 1 proton

Which is the best way for chlorine atom to achieve noble gas configuration?

• gain 1 electron

• lose 1 electron

• lose 7 electrons

• gain 1 proton