Electron Configuration
How many principal energy levels an atom might have?
7
These are the electrons located in the outermost energy level of an element
Valence electrons
It is the tendency for the atoms to have eight electrons in their last principal energy level.
The Octet Rule
What is the formula for this compound: Cadmium Bromide?
CdBr2
What is the name for this compound: ZnCl2?
Zinc Chloride
What are the names of the 4 energy sublevels an atom might have?
s, p, d, f
Since Aluminum (Al) is in group 3A, how many valence electrons does it have?
3
Is an electrically charged atom of an element formed by losing or gaining one or more electrons to complete the octet rule.
An Ion
What is the formula for this compound:Barium Sulfide?
BaS
What is the name for this compound: Be3N2?
Beryllium Nitride
What is the electron configuration for Sodium (Na). Atomic Number = 11
1s2 2s2 2p6 3s1
Since Sulfur (S) is in group 6A, how many valence electrons does it have?
6
Sodium (Na) is at group 1A, how many valence electrons does it have to lose to complete the octet rule?
1
What is the formula for this compound: Tin(IV) Oxide?
SnO2
What is the name for this compound: Cr2O3?
Chromium(III) Oxide
What is the electron configuration for Cobalt (Co). Atomic Number = 27
1s2 2s2 2p6 3s2 3p6 4s2 3d7
How many valence electrons does Neon (Ne) have?
8
Oxygen (O) is at group 6A, how many valence electrons does it have to gain to complete the octet rule?
2
What is the formula for this compound: Nickel(II) Oxide?
NiO
What is the name for this compound: FeO?
Iron(II) Oxide
What is the electron configuration for Cadmium (Cd). Atomic Number = 48
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10
A new nonmetal element has been discovered, since it was determined to have 7 valence electrons, in which group will it be located?
7A
Neon (Ne) is at group 8A, how many valence electrons does it have to gain to complete the octet rule?
0
What is the formula for this compound: Manganese(III) Phospide?
MnP
What is the name for this compound: PbS2?
Lead(IV) Sulfide