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Chem Exam 2
Term | Definition |
---|---|
First Energy Level | Closest to the nucleus |
d block | transition metals |
orbital | region where electrons are located |
2p | last sub level in nitrogen with electrons |
f sublevel | holds up to 14 electrons |
fourth energy level | largest size and greatest energy |
2s | last sub level in lithium with electrons |
energy level or shell | a group of sub levels with similar energy |
s sub level | has 1 orbital |
3p | last sub level in chlorine with electrons |
p block | groups 3-8 on periodic table (not helium) |
second energy level | contains s and p sub level |
s block | groups 1 and 2 on period table (+ helium) |
1s | first sub level filled for any element |
d sub level | has 5 orbitals |
third energy level | contains s, p, and d sub levels |
p sub level | can hold up to 6 electrons |
3s | last sub level in magnesium with electrons |
sub level | group of orbitals of the same type |
valence electrons | electrons in the outermost energy level |
core electrons | all other |
Diatomic Elements | H N O F Cl Br I |
Avogadros number | 6.022x10^23 = 1 mole |