practice drawing atoms. drawing atoms rules protons = atomic number electrons = atomic number...
TRANSCRIPT
DRAWING ATOMS RULES
PROTONS = Atomic numberELECTRONS = Atomic numberNEUTRONS =
mass number – atomic number
1st level can hold up to 2 electrons2nd level can hold up to 8 electrons3rd level can hold up to 18 electrons
DRAW AN ATOM- Oxygen (O)
PROTONS =
ELECTRONS =
NEUTRONS =
8 P+
8 e-2 in 1st level6 in 2nd level
16-8= 8 N
8P+
e-e-8 N
e-e-
e-e-
e-
e-
DRAW AN ATOM- Boron (B)P=
E =
N = 11 – 5 = 6 N
5P+
5P+
e-e-6 N
e-
e-
5e-2 in 1st level3 in 2nd levele-
DRAW AN ATOM – Aluminum (Al)
PROTONS =
ELECTRONS =
NEUTRONS =
13 P+
13 e-2 in 1st level8 in 2nd level3 in 3rd level
27 - 13 = 14N
13P+
2e-
3e-14 N 8e-
DRAW AN ATOM- Lithium (Li)
PROTONS =
ELECTRONS =
NEUTRONS =
3 P+
3 e-2 in 1st level1 in 2nd level
7-3 = 4N
3P+
e-e-4 N
e-
DRAW AN ATOM- Nitrogen (N)
P=
E =
N = 14-7=7 N
7P+
7P+
e-e-7 N
e-e-
e-e-e-
7 e-2 in 1st level5 in 2nd level
DRAW AN ATOM – Phosphorus (P)
PROTONS =
ELECTRONS =
NEUTRONS =
15 P+
12 e-2 in 1st level8 in 2nd level5 in 3rd level
31-15 = 16N
15P+
2e-
5e-16 N 8e-
DRAW AN ATOM- Fluorine (F)
PROTONS =
ELECTRONS =
NEUTRONS =
9 P+
9 e-2 in 1st level7 in 2nd level
19 – 9 = 10N
9P+
2e-10 N 7e-
DRAW AN ATOM- Carbon (C)P=
E =
N = 12 – 6 = 6 N
6 P+
6P+
e-e-6 N
e-e-
e-
6e-2 in 1st level4 in 2nd levele-
DRAW AN ATOM- Sodium (Na)P=
E =
N = 23-11= 12 N
11 P+
11P+
e-e-12 N
e-e-
e-e-
e-
e-
12 e-2 in 1st level8 in 2nd level1 in 3rd level
e-
e-
e-
DRAW AN ATOM- Beryllium (Be)P=
E =
N = 9 – 4 = 5 N
4P+
4P+
e-e-5 N
e-
e-
4e-2 in 1st level2 in 2nd level
DRAW AN ATOM- Neon (Ne)
PROTONS =
ELECTRONS =
NEUTRONS =
10 P+
10 e-2 in 1st level8 in 2nd level
20 – 10 = 10N
10P+
2e-10 N 8e-