The Atom
This negatively charged particle is found orbiting the nucleus of the atom.
Electron
A column in the Table is known as this.
Group, Family
These elements in the last group are completely nonreactive nonmetals.
Noble Gases
This element has 6 protons.
The period an element is in tells how how many of these an atom will have.
Energy levels
This is a positively charged particle.
Proton
This number is the number of protons and electrons an atom has.
Atomic number
These types of elements are in between metals and nonmetals and used to make semi-conductors.
Metalloids
This element is the only liquid metal.
Mercury
The first energy level can hold this many electrons.
2
The nucleus of the atom contains these two particles.
Protons and Neutrons.
A row in The Table is known as this.
Alkali Metals
This element has 3 neutrons and 1 valence electron.
Lithium
This type of bond is when atoms transfer electrons.
Ionic bond
When you change the number of electrons, an atom becomes this.
Ion
The Periodic Table was put together by this Russian scientist.
Dmitri Mendeleev
Left
This element has an atomic mass of 197.
Gold
This type of bond happens between two nonmetals and is when atoms share electrons.
Covalent
When you change the number of neutrons in an atom, it becomes this.
Isotope
This number is the number of protons plus the number of neutrons, but is often seen as a weighted average on The Table.
Atomic Mass
These elements in the second to last group are very reactive nonmetals.
This element is the most abundant in the universe.
Hydrogen
The electrons in the outer most energy level are known as this.
Valence electrons