Chemistry 1
What are the elements in Group 18 called ?
Noble Gases
What temperature (Celsius) does ice melt or freeze
Zero Celsius
These are formed when electrons are gained by a neutral atom
anion
These types of elements tend to gain electrons
non metals
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)
What are the elements in Group 2 called?
Alkaline Earth Metals
What is the atomic number of neon (Ne)?
10
Energy level (or electron shell level 1) has this subshell only
S
Anions have this type of charge
negative
What is a valence electron?
Electron in the outermost energy level
What happens to atomic size as you go down a group?
It increases
A negatively charge ion
Anion
Elements will lose or gain electrons to become these
Noble Gas
The p sublevel can hold up to this many electrons
6
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 or Electronegativity
These form when atoms lose or gain electrons
Ions
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