Chemistry 1
What are the elements in Group 18 called ?
Noble Gases
What is the difference between pure and applied chemistry?
Pure chemistry is using chemistry to further knowledge in the field of chemistry, and applied chemistry is using chemistry to solve real world issues/scientific problems.
Extensive properties depend on the _______ of matter. (amount or size)
amount of matter
How many sig figs does the following measurement have: 4,007 ml
4
Name all 3 subatomic particles.
Protons Neutrons Electrons
What number do you use to find the number of protons?
atomic number
What are the 3 main states of matter?
Solid, liquid, gas
What is the 25th element called?
Manganese or Mn
What would you use a beaker for?
to measure volume
What is the formula for density?
Density = Mass/Volume (Mass over volume)
Write the following number in scientific notation: 6,300,000
6.3 x 10^6
What is the atomic number of neon (Ne)?
10
How many sig figs does the following measurement have: 0.9800460
7 (the zero on the right counts because there's a decimal!)
What early model of the atom did Thomson develop that involved a lump of positive charge with electrons stuck to it?
Plum-Pudding Model
What is a valence electron?
Electron in the outermost energy level
Name of the rule for predicting ion formation
Octet Rule
A negatively charge ion
Anion
Subatomic particles can be broken down into what smaller particles that we don't know much about yet?
Quarks
Who discovered protons?
Rutherford
Size, density and boiling point are all what type of property?
Physical property
When moving from left to right across the periodic table, what increases?
Atomic Number
Where are the electrons in the Quantum model of the atom?
Probably in the energy levels
What is in the nucleus in the Bohr model of the atom?
protons and neutrons
Elements with the same number of protons but different number of neutrons
Isotope
Will oxygen accept or donate electrons? How many?
Accept two electrons