11SCI - Atoms, Ions, pH

An atom is made up of

• protons, and other things

• electrons, chemicals, neutrinos

• neutrinos, protons, electricity

• electrons, protons, neutrons

How many protons does a chlorine atom have?

• 35

• 35.45

• 17

• 18

What is the atomic number of chlorine?

• 35

• 35.45

• 17

• 18

What is the Atomic Mass of chlorine?

• 35

• 46

• 17

• 18

How many protons PLUS neutrons in a chlorine atom nucleus?

• 17

• 46

• 35

• 18

How many neutrons in a chlorine atom nucleus?

• 17

• 18

• 35

• 46

How many electrons in a chlorine atom?

• 35

• 18

• 17

• 46

Where do protons and neutrons exist in an atom?

• In shells around the outside

• In the dense centre (the nucleus)

• Spread evenly throughout the atom

• Atoms don't exist

Protons have a charge that is

• always negative

• always positive

• positive OR negative

• always neutral

Where do electrons exist in an atom?

• Spread evenly throughout the atom

• In the dense centre (the nucleus)

• In shells around the outside

• Atoms don't exist