Ion Formation

What is an ion?

• An atom with extra neutrons

• A charged particle

• An atom that has equal protons and electrons

• A particle with a different atomic mass

Tags

NGSS.MS-PS1-5

How do metal atoms form ions?

• They lose electrons to form negative ions

• They gain electrons to form positive ions

• The lose electrons to form positive ions

Which of these statements about a negative ion is true?

• It has an equal number of protons and electrons.

• It has more protons that electrons

• It has more electrons than protons

Bromine is in Group 7 of the periodic table. What is the charge on its ions?

• -1

• -2

• 1

A magnesium ion has the formula Mg²⁺. What is its electronic structure?

• 2,8,4

• 2,8,2

• 2,8

An ion has the formula Ba²⁺. What group of the periodic table is its element in?

• 1

• 2

• 6

Sulphur is in group 6 of the periodic table. What is the formula of its ion?

• S^-6

• S⁺⁶

• S^-2

A fluorine atom has 9 electrons in total. What would the electron configuration of a fluorine ION be?

• 2,7

• 2,6

• 2,8

The charge on an atom is...

• positive

• neutral

• negative

Calcium ions form an ion with __________ charge.

• -1

• +1

• +2

• -2