Chemical Properties Of Elements Flashcards Preview

Chemistry > Chemical Properties Of Elements > Flashcards

Flashcards in Chemical Properties Of Elements Deck (14):
1

Name for negative ion?

Anion

2

Name for positive ion

Cation

3

Properties of alkali metals

Low densities
Soft
Silver and shiny
Conductors
REACTIVE
cations
Most reactive at the bottom

4

Properties of alkali earth metals?

Silvery
Cations
Most reactive at the bottom
Conductors
Burn in air

5

Properties of halogens

Non metal
Diatomic molecules
Anions
Low m and b points
Color incr down group
Most reactive at the top

6

Properties of noble gases

Unreactive
Chemically inert

7

What does the Lewis structure represent

An element with its valence electrons

8

Def of a molecule

Two or more atoms bonded together to form a separate unit

9

Def of covalent bonding

Non metals bonding to form molecules when they share electrons

10

Simple molecule

Small number of atoms with strong intermolecular bonds

11

Allotrope?

An element found in one or more crystal forms with a different crystal structure

12

Name 2 allotropes of carbon?

Diamond and graphite

13

Properties of diamond

Carbon network structure
Covalent bonding(1 to 4)
Strong covalent bonds(hard,brittle,high m point)
Not electrical conductors

14

Properties of graphite

Layers of carbon atoms
Weak IMF
1 free e -> electrical conductor