CHEM Test 8 (9th) 21-22

• Dalton's atomic model

• Bohr's atomic model

• Thomson's atomic model

• Thomson's Atomic Model

• Bohr'ss Atomic Model

• Rutherford's Atomic Model

• Dalton's Atomic Model

• Rutherford's Atomic Model

• Bohr's Atomic Model

• Bohr's atomic model

• Rutherford's atomic model

• Dalton's atomic model

What letter do we use for the mass number?

• Z

• A

• W

What letter do we use for the atomic number?

• Z

• A

• W

An atom has

Z=6

A=14

Therefore:

• it has 8 neutrons

• it has 6 neutrons

• it has 14 protons

An atom has

Z=3

A=7

Therefore:

• it has 3 protons

• it has 7 protons

• it has 3 neutrons

According to the Bohr's Atomic Model energy levels are represented by

• n= 1, 2, 3, 4, 5, 6, 7

• l= s, p, d, f

• ml= +1/2 , -1/2

A shell closer to the nucleus is of

• minimum energy

• maximun energy

• none of the above