exam 2 Flashcards
Electrons are described as likely to be found in a specific region of a space called an orbital
Quantum Model
Principal quantum number, number, n, row number from the periodic table
Energy Level/Shell
s, p, d, or f type, each has a set number of possible orbitals
Sublevel/Subshell
Probability map for locating an electron of a certain energy
- Each type has a specific shape in 3D
- Can hold up to 2 electrons (of opposite spin)
Orbital
The electrons in the highest principal energy level (whole level, largest n value)
Valence Electrons
8 electrons in the valence level, atoms tend to react chemically to attain an octet of electrons in the valence level (ns^2np^6)
Octet Rule
Sharing valence level electrons to achieve access to an octet
Covalent Bonding
How many covalent bonds does hydrogen form?
1
How many covalent bonds does Group 3A/13 form?
3
How many covalent bonds does Group 4A/14 form?
4
How many covalent bonds does Group 5A/15 form?
3
How many covalent bonds does Group 6A/16 form?
2
How many covalent bonds does Group 7A/17 form?
1
How many covalent bonds does Group 8A/18 form?
Does not form covalent bonds
What is the ionic charge of Group 1A/1?
1+
What is the ionic charge of Group 2A/2?
2+
What is the ionic charge of Al?
3+
What is the ionic charge of Ag?
1+
What is the ionic charge of Zn?
2+
What is the ionic charge for Group 3A/13?
0
What is the ionic charge for Group 4A/14?
4+
What is the ionic charge for Group 5A/15?
3-
What is the ionic charge for Group 6A/16?
2-
What is the ionic charge for Group 7A/17?
1-
What is the ionic charge for Group 8A/18?
Does not form ions
Atoms transfer electrons (lose/gain) to form ions
Ionic Bond
1 pair of electrons shared between 2 atoms
Single Bond
2 pairs of electrons shared between 2 atoms
Double Bond
3 pairs of electrons shared between 2 atoms
Triple Bond
Shared pairs between 2 atoms
Bonding Pairs
Pairs unshared on an individual atom
Nonbonding/Lone Pairs
Made from 2 types of nonmetal atoms
Binary Molecular Compound
mono-
1
di-
2
tri-
3
tetra-
4
penta-
5
hexa-
6
Chemical bonding by electron transfer, between metals and nonmetals
Ionic Bonding
Chemical bonding by electron sharing, between different nonmetal atoms
Molecular/covalent Bonding
The smallest component of an element
Atom
A charged atom
Ion