Chapter 6 Flashcards
1
Q
Antoine Levoisier
A
listed all known elements
4 categories
2
Q
John Newlands
A
organized the elements, increasing atomic mass
law of octaves
not accepted
3
Q
Dmitri Mendeleev
A
atomic mass and properties correspond
predict properties and existence
left spaces where unknown elements go
4
Q
Henry Moseley
A
periodic law
fundamental quantity
atomic number with x-rays
5
Q
columns
A
groups
6
Q
rows
A
periods
7
Q
representative elements
A
1, 2, 13-18
8
Q
metals
A
solid shiny conductive malleable ductile
9
Q
nonmetals
A
gases
brittle
dull
poor conductors
10
Q
metalloids
A
brittle
solid
shiny
semi conductors
11
Q
corresponds with group
A
valence electrons
12
Q
what indicates energy level
A
period
13
Q
groups have similar
A
properties
14
Q
4 different sub levels
A
s
p
d
f
15
Q
no definite shape
A
electron cloud
