A region of space in which there is a high probability of finding an electron
Orbital
The amount of energy needed to remove an electron from a gaseous atom
ionization energy
Name of group 1A; outer electron configuration in ns1 ; 1 valence
Alkali Metals
A group is a column on the periodic table.
List the names:
1A: Alkali Metals 2A: Alkaline earth metals
7A: Halogens 8A: Noble Gases
Small and extremely dense region found at the center of the atom. What's inside?
Nucleus
Guves the number of protons in an atoms
Atomic #
Name of group 8A ; outer electron configuration is ns2 np6 ; 8 valence
Noble gases
What is Group 2 called ?
Alkaline Earth metals
Means same electron configuration
Isoelectronic
Term used for electrons in the highest energy level; gained or lost when forming ions
Valence
Name of group 2A ; outer electron configuration is ns2 ; 2 valence
Alkali- Earth metals
What is Group 17 called?
Halogens
Atoms that have a charge; formed by the gain, or loss, of electrons
Ions
Form ions by gaining electrons. They become anions (-ions)
Nonmetals
Name of group 7A ; outer electron configuration is ns2 np5 ; 7 valence
Halogens
What is Group 18 called ?
Noble Gases
A measure of an atom's pull on the electrons in a bond
electronegativity
Form ions by losing electrons. They become cations.
Metals
What is Group 1 called ?
Alkaline Metals