Gen. Chem

Question 1

Atomic mass unit

Answer 1

amu

Question 2

atomic number

Answer 2

Z

Question 3

mass number

Answer 3

A

Question 4

Isotopes

Answer 4

atoms that share an atomic numbers but have different mass numbers

Question 5

Carbon (12,6)

Answer 5

Z=6 ( 3 naturally occurring isotopes)
12= 6 protons and 6 neurons

Question 6

Mass of electron

Answer 6

1/2000 that of a proton

Question 7

As electrons go from lower energy lever to higher energy level they get AHED: What does AHED stand for?

Answer 7

Absorb light
Higher potential
Excited
Distance (from the nucleus)

Question 8

Maximum number of electrons in a subshell

Answer 8

4l+2

Question 9

L subshell

Answer 9

specifies the shape of subshell
(s,p,d,f,g)

Question 10

Magnetic quantum number (ml)

Answer 10

-1,0,+1

Question 11

Spin quantum number (ms)

Answer 11

+1/2,-1/2

Question 12

Planck relation (frequency)

Answer 12

E=hf

Question 13

Angular momentum of an electron (Bohr model)

Answer 13

L=nh/2(pi)

Question 14

Energy of electron (Bohr model)

Answer 14

E= - R (H)/n^2

Question 15

Planck relation ( wavelength)

Answer 15

E= hc/(y)
y= wave frequency

Question 16

Maximum number of electrons within a shell

Answer 16

2n^2

Question 17

Representative elements

Answer 17

include S and P blocks

Question 18

Non representative elements

Answer 18

include D block and lanthanide and actinide series