Unit 6 Test Flashcards
1
Q
Alkali metals
A
VERY reactive, never found alone in nature
2
Q
Alkali earth metals
A
Reactive, but not as much as alkalis
3
Q
Halogens
A
VERY reactive, never found alone in nature
4
Q
Cation
A
a positive ion, it has lost electrons
5
Q
Anion
A
a negative ion, it has gained electrons
6
Q
electronegativity
A
the measure of the ability of an atom in a chemical compound to attract electrons
7
Q
Molecule
A
a neutral group of atoms that are held together by covalent bonds.
8
Q
Formula Unit
A
The simplest collection of atoms from which an ionic compounds formula can be established
9
Q
Bond Energy
A
The energy required to break a chemical bond and form a neutral, isolated atom
10
Q
Crystal lattice
A
In an ionic crystal, the ions minimize their potential energy by forming a crystal lattice.
