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period table
period table
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periodic table questions
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1
Who is credited with setting up the first periodic table?
Mendeleev
Thomson
Dalton
Rutherford
2
Carbon's atomic number
4
6
13
12.0
3
Which element is in the Halogen group?
Cl
Ca
Ne
K
4
In the modern periodic table the elements are organized by _______________.
increasing atomic number
increasing mass number
number of electrons
increasing atomic mass
5
Elements that generally are good conductors of electricity.
metalloids
non-metals
all the elements
metals
6
What element is an alkali metal in period 3?
Mg
K
Na
Cl
7
The representative elements are in groups?
1-18
At the bottom of the periodic table
B groups
Groups 1-8 A
8
The horizontal rows on the periodic table.
periods
families
groups
columns
9
What element can be found in period 2 group 4A?
Sr
Ag
Ti
C
10
Mendeleev's periodic table was organized by _________.
atomic mass
mass number
atomic number
number of elecrons
11
What element is in period 6 group 2?
Nb
Cr
S
Ba
12
The elements on the periodic table to the left of the stair step are called____________.
non-metals
metals
metalloids
13
What element would have similar properties to Chlorine?
K
I
Ar
S
14
The vertical columns on the periodic table.
categories
groups/families
periods
15
Across a period_____________
The atoms become more reactive
The elements become less metallic
Nothing happens
The elements become more metallic
