Chapter 2 Flashcards
1
Q
How many elements are in the periodic table?
A
over 100
2
Q
What are the elements arranged in order off?
A
the increasing atomic number
3
Q
What are the rows and columns called?
A
rows - periods
columns - groups
4
Q
What does it mean when elements are in the same group?
A
they have similar chemical properties
5
Q
If elements are in the same group what do they have in common?
A
the same number of electrons in the outer shell
6
Q
What group are noble gasses?
A
0
7
Q
What are features of noble gases?
A
- gases
- non-metals
- reactive
8
Q
What are the typical charges of noble gases?
A
0
9
Q
What group are alkali metals?
A
1
10
Q
What are features of alkali metals?
A
- metal
- reactive
11
Q
What are the typical charges of alkali metals?
A
+1
12
Q
What group are the halogens?
A
7
13
Q
What are features of the halogens?
A
- non-metal
- reactive
14
Q
What are the typical charges of the halogens?
A
-1
