Families, Metals, Nonmetals, Metalloids Flashcards
1
Q
Metals
A
(+) charges L side Solids @ room temp Shiny Malleable Conductive React w/ acids ↑densities
1
Q
Nonmetals
A
- charges R side Gases @ room temp (which gives them ↓er densities) Dull Brittle Don't conduct (except C) Don't react w/ acid ↓ melting points ↓densities
2
Q
Nonmetals
A
(-) charges R side Gases @ room temp (which gives them ↓er densities) Dull Brittle Don't conduct (except C) Don't react w/ acid ↓ melting points ↓densities
4
Q
Alkali Metals
A
1ve (+1) Group 1 Li,Na,K Very reactive (explosive in H20) Soft metals ↓melting point, density, electronegativity,ionization (lose their 1ve easily)
5
Q
Alkali Earth Metals
A
2ve (+2) Group 2 Be,Mg,Ca Fairly soft (harder than Alkali Metals) Radioactive React w/ H20 to form bases ↓ ionization energy Kill you (radium) Give you strong teeth & bones Make up seashells & limestones Aircraft & spacecraft construction
6
Q
Transition Metals
A
2ve (+1,2,3) "d block" Au,Ag,Cu,Fe ↑ melting points Ductile (can be pulled into wires) Malleable Hard metals Less reactive Conductive
7
Q
Halogens
A
7ve (-1) Group17 F,Cl,Br Most reactive nonmetals Diatomic elements (2 elements clumped together, come in 2s) Always found in compounds (make salts) ↑ everything except density In a halogen lamp
7
Q
Hydrogen
A
1 ve (+1 charge) The only non-metal not grouped w/ other non-metals
9
Q
Hydrogen
A
1ve (+1)
The only non-metal not grouped w/ other non-metals
10
Q
Rare Earth Metals
A
2ve (+3)
“f block”
La,Ce,Pr
11
Q
Physical change
A
Can be tested w/o changing the identity of the substance
Shape,Size,State,Color,Density,Melting point,Boiling point,Odor,luster,malleability,conductivity
“Dissolving sugar”,”puddle evaporates”,”pond freezing”
11
Q
T/F
All noble gasses have an e- config. that ends in p6
A
False
Helium (He) ends in s2
13
Q
T/F
All Noble Gases have an e- config. that ends in p6
A
False
Helium (He) ends in s2
14
Q
T/F
Hydrogen is an Alkali Metal
A
False It's in its own class b/c it has 1e- it's classified as a nonmetal and is located above the Alkali Metals
14
Q
T/F
Halogens are diatomic elements that are always found in nature in combined states
A
True
2 elements clumped together/come in 2s
