Question

Shameeka is studying for an exam. She took the notes below about calcium and chlorine, which are known to form ionic bonds.

Calcium, which is a metal, donates 2 electrons to chlorine.
The individual calcium atoms become ions with a negative 2 charge.
The bond between calcium and chlorine makes the atoms stable.
Calcium and chlorine attract each other.

Which best describes Shameeka’s error?

Calcium is a metal, so it donates protons, not electrons.
The individual calcium atom has a positive, not negative, 2 charge.
The bond formed makes the atoms unstable, not stable.
Calcium and chlorine repel, not attract, each other.

Answer 1

B) The individual calcium atom has a positive, not negative, 2 charge.

Step-by-step explanation:

Hope this helps. Have a good day!

Answer 2

The individual calcium atom has a positive, not negative, 2 charge.

Step-by-step explanation:

The error in her study is in the second line of her note which suggests that the individual calcium atoms becomes ions with a negative 2 charge.

• When atom loses electrons, it has a net positive charge on it.
• Not a negative charge.
• This is because the number of protons is now more than electrons.
• Therefore, a net charge on the calcium atom will be a positive one.
• This is her mistake.