Atoms Test

The ATOMIC MASS of an atom is:

• protons+neutrons
• protons+electrons
• Neutrons
• Protons-neutrons

What is the ATOMIC NUMBER for OXYGEN?

• 8
• 6
• 10
• 12

How many ELECTRONS are in flourine?

• 9
• 10
• 11
• 19

The atomic number is:

• Protons OR electrons
• Neutrons
• Protons+Neutrons
• .

How many electrons CAN you put in the 1ST ENERGY LEVEL of an bohr model?

• 2
• 8
• 6
• 18

How many electrons CAN you put in the 2ND/3RD ENERGY LEVEL of an bohr model?

• 8
• 2
• 18

How many electrons CAN you put in the 4TH ENERGY LEVEL of an bohr model?

• 18
• 8
• 2

The PERIODIC TABLE is ORGANIZED by:

• atomic number
• mass number
• number of electrons

COLUMNS on the periodic table

• group
• period
• row
• .

ROWS on the periodic table

• period
• group
• column.
• .