Module 2B - Formulae and Balancing Flashcards
1
Q
Ions
A
Atoms that have gained or lost electrons, they do this to increase stability.
2
Q
Common ions
A
NO3^-, CO3^2-, SO4^2-, OH^-, NH4^+, Zn^2+, Ag^+
3
Q
Overall charge must equal to zero
A
Number of positives = Number of negatives
4
Q
Diatomic elements
A
BRINCLHOF - Br, I, N, Cl, H, O, F
5
Q
Atomic Orbitals:
A
An area around the nucleus that can hold up to two electrons with opposite spins.
6
Q
S-orbitals shape?
A
Spherical
7
Q
How many s-orbitals in one shell?
A
One
8
Q
Shape of p-orbital
A
Dumbbell shape
9
Q
How many p-orbitals in one shell?
A
3
10
Q
N
A
Shell number
11
Q
N = 1 how many electrons?
A
2 electrons
12
Q
N = 2 how many electrons?
A
8 electrons
13
Q
N = 3
A
18 electrons
14
Q
N = 4
A
32 electrons
