An atom with a different number of neutrons than average.
What is an isotope?
100
the total number of protons and neutrons (together known as nucleons) in an atomic nucleus
What is the mass number?
100
This is not a tooth. It is the number of protons plus the average number of neutrons in a given element.
What is molar mass?
100
The amount of matter in something.
What is mass?
100
The type of spin that fills first in an orbital
What is an upspin?
200
implies that mass can neither be created nor destroyed, although it may be rearranged in space, or the entities associated with it may be changed in form
What is conservation of mass?
200
a distinct kind of atom or nucleus characterized by a specific number of protons and neutrons.
What is a nuclide?
200
Given 3.5 mol Cu, this is the mass.
What is 222g Cu?
200
a measure of gravitational pull
What is gravity?
200
This element REALY doesn't fit in any group.
What is hydrogen?
300
The smallest constituent unit of ordinary matter that has the properties of a chemical element.
What is an atom?
300
the standard unit that is used for indicating mass on an atomic or molecular scale (atomic mass). One unified atomic mass unit is approximately the mass of one nucleon (either a single proton or neutron) and is equivalent to 1 g/mol.
What is a unified atomic mass unit?
300
Given 3.5 grams He, this is the mol.
What is 0.87 mol?
300
Proved the existence of the atom in 1905
Who is Einstein?
300
Very light particle outside of the nucleus that is charged negatively.
What is an electron?
400
A metal that is near the center of the periodic table. Copper and iron are two examples.
What is a transition element?
400
6.02 × 10 to the 23rd power
What is Avogardo's Number?
400
Given 10 mol of Fe this is the mass.
What is 558.45 g?
400
A biologist named Brown discovered this when he noticed that pollen in still water doesn't hold still, but moves. Einstein developed the equations that explain this motion as the movement of atoms.
What is Brownian Motion?
400
The mass of the sun in scientific notation-or
1989000000000000000000000000000 kg
1.989 × 10xsuper30 kg
500
the forces that act between two or more nucleons. They bind protons and neutrons (“nucleons”) into atomic nuclei. The nuclear force is about 10 millions times stronger than the chemical binding that holds atoms together in molecules.
What are nuclear forces?
500
the SI unit of amount of substance, equal to the quantity containing as many elementary units as there are atoms in 0.012 kg of carbon-12
What is a mole?
500
Given 5 mol Fe this is the mass.
What is 293.4g?
500
Given 2300 Atoms of B, what is their mass in grams?
What is 4.129?
500
These particles are found in clouds that surround a nucleus.