What's my name?
Na2O
sodium oxide
Avogadro's number
What is the electron configuration for Li?
1s^2 2s^2
A simple chemical rule of thumb that states that atoms tend to combine in such a way that they each have eight electrons in their valence shell in order to feel "complete
Three subatomic particles.
protons neutrons and electrons
iron (III) oxide
1 mole element = _________ of element
1 mole element = 6.02x1023 atoms of element
What is the electron configuration of F?
1s^2 2s^2 2p^5
NaCl
ionic
Located outside of the nucleus and have a negative charge.
electrons
Na2C2O4
sodium oxalate
To convert between grams and mole, what do we use?
molar mass
What is the electron configuration of Ti?
1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^2
nonmetal bonds with another nonmetal
covalent bonds
atomic number
The number of protons in an atom of a certain element.
bismuth (III) nitrate
How many moles are there in 1.25x1023 atoms of Fe?
1.25x1023 atoms Fe x ( 1mole Fe / 6.02x1023 atoms Fe) = 0.208 mole Fe
What is the electron configuration of Ni?
1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^8
an illustration that shows the valence electrons in an atom
lewis dot
Atoms with the same number of protons but different number of neutrons.
isotopes
HC2H3O2
acetic acid
How many oxygen atoms are there in 1.30 mole of Ag2C2O4?
1.30 mole Ag2C2O4 x ( 4 mol O / 1 mole Ag2C2O4 ) x (6.02x1023 atoms O / 1 mol O) = 3.13x1024 atoms O
What is the electron configuration of Tin?
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p2
Group that has stable configurations / full octet
noble gases
Ca-41, K-41 and Ar-41 has the same number of neutrons
True or False?
Explain.
Ca-41, K-41 and Ar-41 don't have the same number of neutrons
Ca: 41-20 = 21 neutrons
K:41-19 = 22 neutrons
Ar:41-18 = 23 neutrons