Unit 1
Science skills
Unit 2
Matter and Science skills
Unit 3
Nomenclature
Unit 4
Atom
Unit 5
Nuclear
100
What is the density formula?
d= m/v
100
Free bee
Free bee
100
What are cations?
Positively charged ions.
100
What does the atomic number tell you?
protons and electrons
100
What are isotopes?
Same element with a different number of neutrons
200
What is water displacement?
is a way to find the volume of an object that cannot be measured becuase it doesn't have flat sides.
200
Define Exothermic
A term used to discribe a process that releases engery in the form of heat
200
What are Anions?
Negatively charged ions
200
What are valence electrons determined by?
Group
200
What is nuclear fission?
The splitting of the nucleus into smaller fragments.
300
1.230.000.000 in scientific form
1.23x 10(9)
300
what is chemical change?
A change when one or more substance are converted into different substances
300
What is the chemical formula for Silver sulfide
Ag2S
300
How many electrons can the first shell hold?
2 electrons
300
Define radiation.
The penetrating rays and particles emitting by a radio active source.
400
What is 0.00000142?
1.42x 10 (-6) -Note -6 is the exponent
400
What is physical change?
A change in a substance that does not involve a change in the identity of substance
400
What is the name for Ni(OH)2
Nickel Hydroxide
400
What is on the Nucleus?
protons and Neutrons
400
Define nuclear Reactions
-To many or few neutrons can make a nucleus unstable.
500
What is 1470mg?
0.001470kg
500
define phase change.
Substance changes from one state or phase of matter to another we say that it has gone a change of phase
500
What is the chemical formula for Magnesium Bromide?
MgBr2
500
Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xeon (Xe)
name all the noble gases.
500
Draw the symbols on the board for Alpha radiation, beta Radiation and Gamma Radiation on the board.
Determined by Teacher.
M
e
n
u