P129-140 Flashcards
1
Q
nonmetal
A
An element that lacks most of the properties of a metal
2
Q
diatomic molecule
A
A molecule consisting of two atoms
3
Q
halogen
A
An element found in Group 17 of the periodic table
4
Q
noble gas
A
An element in Group 18 of the periodic table
5
Q
metalloid
A
An element that has some characteristics of both metals and nonmetals
6
Q
alpha particle
A
A type of nuclear radiation consisting of two protons and two neutrons
7
Q
beta particle
A
A fast-moving electron that is given off as nuclear radiation
8
Q
gamma radiation
A
A type of nuclear radiation made of high-energy waves
9
Q
electron dot diagram
A
A representation of the valence electrons in an atom, using dots
