Ions

How many protons are in the element shown? (Write the number only)

How many neutrons are in the element shown? (Write the number only)

The atomic number is the number of protons in the atom, and also used to identify the identity of the atom.

• True

• False

Fill in the blanks:

An ion has the ____ number of protons, but different number of electrons.

If an ion is positively charged, it has ____ electrons

• gained

• lost

What is the number of electrons in the element shown?

• 4

• 7

• 5

• 6

• 3

What is the atomic number in the element shown?

• 56

• 30

• 36

• 26

A atom that has 18 protons and 20 electrons is _________ _________

• positively charged

• negatively charged

True or False:

An ion can be negatively charged but not positively.

• True

• False

Fill in the blanks:

An _________ has a negative charge, while a proton has a positive charge.