If there are 10 protons, 10 electrons and 11 neutrons, this is the mass number.
What is 21 (protons plus neutrons)?
100
The number of significant figures in 505.
What is 3?
100
Definite shape and definite volume
What is a solid?
100
The branch of chemistry that is the study of the impact of chemistry on the environment
What is environmental science?
200
In millimeters, This is equivalent to 1 m
What is 1,000 mm?
200
In a neutral atom, carbon-12 has this many electrons.
What is 6?
200
Calculate 3 X 9 according to significant figures.
What is 30? (you can only have one significant figure so 27 gets rounded to 30).
200
Indefinite shape, definite volume
What is a liquid?
200
The study of matter and the changes it undergoes.
What is chemistry?
300
In kelvin, this is the same thing as 1 kilokelvin.
What is 1,000 K?
300
These are two elements that have identical atomic number but different mass numbers.
What is an isotope?
300
Calculate 6.5 + 3 according to significant figures.
What is 10? (You cannot have a decimal place in the final answer so 9.5 gets rounded to 10).
300
Ionized gas
What is plasma?
300
The largest atomic radius of Li, Na, and K.
What is K?
400
This is how many nanometers are in a meter.
What is 10^9 nm?
400
Isotope 1 has a mass of 40 grams and a percent abundance of 40%. The second isotope has a mass of 43 grams and a percent abundance of 60%. This is the set up to calculate atomic mass.
What is (40 X 0.4) + (43 X 0.6)?
400
This element is formed when beryllium-6 undergoes beta decay.
What is boron?
400
These states of matter have Indefinite shape and indefinite volume.
What is gas and plasma?
400
The amount of energy required to remove an electron from a gaseous atom.
What is ionization energy?
500
This the amount of millimeters in a kilometer.
What is 10^6 mm. (1 million millimeters)
500
Out of Carbon-12, Oxygen-14, and Nitrogen-14, these two elements have the same number of neutrons.
What is carbon-12 and oxygen -14? They both have 6 neutrons.
500
Vanadium is formed after this element undergoes an alpha decay (so what was the original element?)
What is manganese (25)?
500
The sum of the charges that an alkali metal form and a noble gas form.
What is +1? (Nobles gases form a 0 charge, alkali metals form a +1 charge).
500
This eventually occurs when gaseous water loses energy.