Atoms
Periodic Table
Balancing Equations
Bonding
Matter
100
Which subatomic particle can be found in the nucleus of an atom?
Proton or Neutron
100
Vertical columns on the periodic table as known as
Groups or Families
100
Elements and compounds entering a reaction are known as
reactants
100
Make a compound between Magnesium and Bromine.
MgBr2
100
Is an ice cube melting a physical or chemical change?
physical
200
Who discovered electrons?
Thomson
200
90% of the periodic table is made up of what type of elements?
Metal
200
What type of reaction absorbs energy from the environment?
endothermic
200
Write the formula for beryllium hydroxide
Be(OH)2
200
A substance with a pH of 13 would be considered a _______ __________.
strong base
300
How many protons are in 1 atom of Platinum?
78
300
Members of the halogen family have how many valence electrons?
7
300
What type of reaction is CaF2 + Li2SO4 → CaSO4 + LiF
double replacement
300
Name the compound H2O (scientifically)
dihydrogen monoxide
300
As the temperature of a reaction increases the rate of reaction ____________.
increases
400
Who discovered energy "levels"?
Bohr
400
What type of element is Silicon?
metalloid
400
Balance the equation ___ CoBr3 + ____ CaSO4 → ____ CaBr2 + ____ Co2(SO4)3
2,3,3,1
400
Name the compound Be3N2
Beryllium Nitride
400
Element, Compound, or Mixture? Ranch Dressing?
Mixture
500
Draw the Lewis structure for Barium.
Ba and 2 dots (not together)
500
Elements with an atomic number greater than 92 are all ____________.
synthetic (man-made) or radioactive
500
Balance the equation ____ NaBr + ____ H3PO4 → ____ Na3PO4 + ____ HBr
3,1,1,3
500
How are valence electrons "treated" in ionic bonds vs covalent bonds?
Ionic bonding transfers electrons. Covalent bonding shares electrons.
500
What type of matter has a definite volume but not a definite shape?
liquid
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