Atoms
This is the center of an atom, electrons orbit this
What is the nucleus
Made up of only one kind of atom
What is an element
These atoms are the same type of matter but different numbers of neutrons
What are isotopes
These two types of element classifications are found on the right side of the periodic table
What is metalloids and non metals
The first electron shell holds this many electrons
What is 2
This is an uncharged particle in the nucleus of the atom.
What is a neutron
These are arranged on the periodic table according to their atomic number
What is an element
Anything that has mass and takes up space
What is matter
This family of elements are very reactive metals that are malleable, ductile, and can explode if exposed to water
What are Alkali Metals
The second shell of an atom holds this many electrons
What is 8
Electrons used in bonding are
valence electrons
group 17 called with _____ususally bond with group 1 called the ___________
halogens...alkali metals
created the original model of atoms and developed atomic theory
Who is John Dalton
the periodic table is organized by increasing
atomic number
The electrons in the outer most shell are called
What is valence electrons
This is a positively charged particle in the nucleus of the atom
What is a proton
combine by gaining or sharing electrons
What is a non metal
This family of elements will not form compounds
What is the Noble gasses.
This family of elements has properties of both metals and non-metals
What are metalloids
The Lewis dot structure displays these two pieces of information
What is symbol and valence electrons
This is a negatively charged subatomic particle
What is an electron
elements on the zigzag line are called
metalloids
Discovered the nucleus in the gold foil experiment
Earnest Rutherford
Element that has only one valence electron but its properties differ from other alkali metals
Hydrogen
This model displays all electrons orbiting the nucleus in specific layers
What is Bohr Model