Pearson Chemistry: Chapter 6- The Periodic Table

Groups 2A elements

Opposite of properties of metals; poor conductors of heat and electric current; brittle

Group 7A nonmetals

Energy required to remove an electron from an atom

Elements are arranged by increasing atomic #, there's a periodic repetition of their properties

Highest occupied s sublevel and a nearby f sublevel generally contain electrons

Elements in group 8A of periodic table; rarely take part in a reaction

An ion with a positive charge; loss of electrons

Group B elements; highest occupied s sublevel and a nearby d sublevel contain electrons

Ability of an atom of an element to attract electrons when the atom is in a compound

An ion with a negative charge; gain of electrons

Properties similar to thse of metals and nonmetals; border the line in the periodic table

1 half of the distance between the nuclei of 2 atoms of the same element when atoms are joined

Portion of groups 1A through 7A; displays range of physical/chemical properties

Atom or a group of atoms that has a positive or negative charge

Group 1A elements

Good conductors of heat/electric current; lustrous; ductile; malleable