Electron Configuration
The electron configuration for silicon(Si)
What is [Ne] 3s2 3p2? OR What is 1s2 2s2 2p6 3s2 3p2?
The chemical formula for Magnesium oxide
What is MgO?
CaCO3 --> CaO +CO2
This reaction type
What is decomposition?
The percentage of H in HCl
What is 3.0%?
This periodic trend increases from top to bottom and decreases left to right.
What is atomic radius?
The electron configuration for Sodium (Na)?
The name for this formula, N2O5
What is dinitrogen pentoxide?
2 AgNO3 + Cu --> Cu(NO3)2 + 2 Ag
The reaction type
What is single replacement?
The percent of N in N2S2
What is 30.4%?
An atom includes 6 electrons, 6 protons, and 6 neutrons, this element is...?
What is carbon?
Determine if the following electron configuration is valid:
1s2 2s2 2p6 3s2 3d5
What is NO!
Why? 3p should come before 3d
The name for the formula, Fe(NO3)3
What is Iron (III) nitrate?
The synthesis of Hydrogen gas and oxygen gas will produce what product(s).
What is 2H2O?
The percentage of Mn in KMnO4
What is 35%?
The half life of isotope C is 2.0 years. How many years years would it take for a 4.0 mg sample of X to decay and have only 0.50 mg of it remain?
What is 6 years?
Determine if the following is a valid electron configuration:
[Xe]
What is NO!
Why?
An element cannot be its own electron configuration.
The formula for Lithium phosphate
What is Li3PO4?
Ammonia vapor and hydrogen sulfide gas react to produce solid ammonium sulfide. (Write balanced equation)
What is 2NH3 + H2S → (NH4)2S
The percent composition for all the elements in Copper (II) chloride.
What is:
Cu- 47.2%
Cl- 52.8%
The half-life of cobalt-60 is 5.26 years. If 50 g are left after 15.8 years, how many grams were In the original sample?
What is 400g?
The full electron configuration for sulfur.
What is 1s2 2s2 2p6 3s2 3p4?
The name for the formula, Fe2(CrO4)3
What is Iron (III) chromate.
Solid sodium reacts with oxygen gas to produce solid sodium oxide. (Write balanced equation)
What is 4Na+O2 → 2Na2O4 OR 2Na+O2 → Na2O
The element in Mg(NO3)2 that consitutes ~19%.
What is Nitrogen?
Electronegativity is a measure of...
What is a chemical property that describes the tendency of an atom or a functional group to attract electrons toward itself?