Electron Configuration
Lithium- 7
1s^2 , 2s^1
which symbol represents Krypton on the table
Kr
the numbers written in front of the reactants and products
Coefficients
Carbon Dioxide
CO2
Silicon- 30
1s^2, 2s^2, 2p^6, 3s^2, 3p^2
what charge does group 16 have?
2-
what are the 4 states of matter put in an equation
Solid, liquid, gas, and aqueous
prefix for 8
Octa
Copper- 65
1s^2, 2s^2, 2p^6, 3s^2, 3p^2
what group are the Halogens located in
group 17
N2 + H2 → NH3 balanced
1N2 + 3 H2 → 2 NH3
S2Cl4
Disulfur tetrachloride
Iodine- 130
1s^2, 2s^2, 2p^6, 3s^2, 3p^6, 4s^2, 3d^10, 4p^6, 5s^2, 4d^10, 5p^5 OR [Kr] 4d^10, 5s^2, 5p^5
The Alkaline Metals are next to which group
The Alkaline Earth Metals
an unbalanced equation is called what
a skeleton equation
(HPO4)-2
Hydrogen Phosphate
Thorium- 235
1s^2, 2s^2, 2p^6, 3s^2, 3p^6, 4s^2, 3d^10, 4p^6, 5s^2, 4d^10, 5p^6, 6s^2, 4f^14, 5d^10, 6p^6, 7s^2, 5f^2 OR [Rn] 6d^2, 7s^2
how many confirmed elements are on the periodic table
118
Pb(OH)2 + HCl → H2O + PbCl2 balanced
1Pb(OH)2 + 2HCl → 2H2O + 1PbCl2
Ionic Formulas in group 15
Nitride, Phosphide, Arsenide