Atom versus ion

Ions that have lost electrons have a...

• Positive charge

• Neutral charge

• Negative charge

• None of the above.

Ions that have gained electrons have a...

• Negative charge

• No charge

• Positive charge

• Electric charge

All ions have a..

• Cell

• Charge

• Atom

• None of the above.

Positive ions are _________than the atom that formed it.

• Smaller

• The same size

• Larger

• None of the above.

How many types of Ions are there?

• 1

• 4

• 3

• 2

The number of energy levels in sodium ion is----------the number of energy levels in its atom.

• Equal to

• Less than

• More than

• No correct answer

Metals tend to lose electrons and convert into negative ions.

• True

• False

The symbol of oxygen ion is-------

• O^-

• O⁺²

• O⁺

• O^-2

The number of electrons in magnesium ion is---------

• 12

• 18

• 10

• 8

Elements whose the outermost shells are completely filled with electrons.