Gen Chem Review Flashcards
Symbols: H+, p, p+
Charge: +1
Mass: 1.673x10^-24 g
Mass: 1.007 amu
Found in the nucleus
Proton
Symbols: H+, p, p+
Charge: +1
Mass: 1.673x10^-24 g
Mass: 1.007 amu
Found in the nucleus
Proton
Symbols: n, n^0
Charge: 0
Mass: 1.675x10^-24 g
Mass: 1.008 amu
Found in the nucleus
Neutron
Symbols: e-
Charge: -1
Mass: 9.110x10^-28 g
Mass: 0.000549 amu
Found in the cloud around the nucleus
Electron
How big is an atom?
1 x 10^-10 m
How big is the nucleus of an atom?
1 x 10^-15 m
What subatomic particles first interact when atoms approach each other?
Valence electrons
What does an s orbital look like?
Vague circle
What does an s orbital look like?
Vague circle
How many p orbitals are there? What are they and what do they look like?
3
X,Y,Z
Looks like a splitting atom in different rotations on the x, the y, and the z axis
What are the electron configurations for:
H
C
N
O
H: 1s
C: 1s2 2s2 2p2
N: 1s2 2s2 2p3
O: 1s2 2s2 2p3
Define electronegativity
The attraction an atom has for the electrons it contributes to a chemical bond
How do electronegativity values determine the type of bond that forms?
The difference in negativity between two atoms tells us the type of bond.
Give the range for each bond type:
Non-polar covalent
Polar
Ionic
Non-polar covalent: < 0.4
Polar: 0.4 < > 1.8
Ionic: 1.8 <
What are the electronegativity values for the following elements?
C
H
N
O
P
S
C: 2.5
H: 2.1
N: 3.0
O: 3.5
P: 2.1
S: 2.5
