Atoms
The smallest particle of matter that cannot be broken down by chemical means.
What is an Atom?
These particles are found in the nucleus of the atom.
Protons and Neutrons
Groups
What are the columns in the periodic table called?
Group 1
Where are the Alkali metals located?
The atomic radius increases.
What happens to the atomic radius when you go down a group?
A substance that contains only one type of atom.
What is an Element?
Charge of +1
What is the charge of a proton?
Periods
What are the rows in a periodic table calle?
Earth Alkali Metals
What are the elements in Group 2 called?
It has the highest electronegativity.
How electronegative is fluorine?
Atoms of the same type with different numbers of neutrons.
What are Isotopes?
The electrons in the outermost shell.
What are valence electrons?
The elements on the left side of the periodic table.
Where are the metals located on the periodic table?
Fluorine, Chlorine, Bromine, Iodine, Astatine
Which are the Halogens?
This element has the smallest atomic radius.
What is helium?
The weighted average mass of all isotopes.
What is the atomic mass?
This particle has a relative mass of zero.
What is the electron?
By their atomic number.
How are elements organised in the periodic table?
6 valence electrons.
How many electrons are in the outer shell of the elements of Group 16?
It is the most reactive nonmetal.
What is fluorine?
The equation used to find electrons on a shell
2n2
A mass of 9.1 x 10-31 kg.
What is the mass of an electron?
The number of electron shells.
What is determined by the periods?
They have a full valence shell and do not react.
Why are the elements in group 18 called noble gases or inert gases?
Of these elements, which has the greatest electronegativity?
Cl P S
What is chlorine?