Definitions
what is a periodic table
a periodic table is a list of all the known elements
What particles has a positive charge?
proton
What is the name of element 1?
hydrogen
How many electrons fit on the first energy level?
2/two
What are the metals called that is a part of group 3-12?
Transition Metals
what dose the atomic number tell you?
the number of protons that are in the element.
What particles have a negative charge?
electron
What element has 7 as the atomic number?
Nitrogen
How many electrons can fit on the third energy level?
18
What group are alkaline metals in?
Group 1
what is bohr model?
a representative of how many total electrons an element holds.
What particles have no charge?
neutron
How many total electrons are on the energy level for NE(neon)?
10 electrons
What does an electron tell you?
The electrical charge of that element.
What is Group 2 called?
Alkaline Earth Metals
what is the "brain" of a atom?
necleus
What atom isn't in the nucleus?
electron
What is the name of the element "Br"
bromine
How many electrons does Oxygen have?
8 electrons
What group is Hydrogen in?
Hydrogen is not a part of a group.
valence electron
an electron of an atom, located in the outermost shell of the atom, that can be transferred to or shared with another atom.
How do you figure out the number of neutrons there is in an atom?
Subtract the atomic number from the atomic mass.
What are the names of the only liquid metals on the period table?
Bromine and Murcury
How do you find the number of electrons in an atom?
The atomic number is the number of electrons you have~ it is also the same as the protons.
What does a group number tell you?
It tells you how many valence electrons are in that element.