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Learning Check 2
To find the number of neutrons you should:
The Periodic Table has:
Learning Check 2
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The Periodic Table
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Answers
1
The Periodic Table has:
118 elements listed on it
115 elements listed on it
117 elements listed on it
116 elements listed on it
2
To find the number of neutrons you should:
Find the atomic # of the element
Subtract the atomic mass # from the atomic # of the element
Subtract the atomic # from the atomic mass # of the element
Find the atomic mass # of the element
3
Which of the following gases has a yellow color and an irritating odor?
Oxygen
Chlorine
Helium
Hydrogen
4
What is the number of protons and electrons for Fluorine?
9
7
3
6
5
The symbol for Silver is:
Ag
G
Si
A
6
The particles that move about the nucleus and have a negative charge are:
groups
atoms
electrons
neutrons
7
To find the number of protons you should:
Subtract the atomic mass # from the atomic # of the element
Find the atomic mass # of the element
Subtract the atomic # from the atomic mass # of the element
Find the atomic # of the element
8
What Group is Oxygen in?
15
16
13
14
9
Group 1 elements are called:
Alkaline Earth metals
Halogens
Noble gases
Alkali metals
10
What is the Atomic mass (rounded) for Fluorine?
17
20
19
18
11
What is the symbol for Hydrogen?
H
He
Hd
Hy
12
A chart that shows the classification of elements is called:
Both
Periodic Table
Neither
Periodic cloud
13
The elements found between metals and nonmetals of the Periodic Table are called:
Metalloids
Halogens
Noble gases
Transition metals
14
Elements in the middle of the periodic table, groups 4-7 are called:
Transition elements
Noble gases
Hydrogen
quarks
15
Which has more protons, Silicon or Cobalt?
Silicon
Cobalt
both
neither
16
The Periodic Table is credited to the inventor:
All are correct
It is credited to the inventor named Rutherford
It is credited to the inventor named Periodic Table
It is credited to the inventor named Mendelev
17
Ernest Rutherford's Gold Foil Experiment concluded that:
100% of the nucleus particles bounced back
The nucleus is too powerful & can't go through the gold foil
The nucleus is small and dense
The nucleus is large and brittle
18
What Period is Lithium in:
4
3
1
2
19
On the Periodic Table, the vertical organization of elements is called:
Groups and Families
Groups
Families
Families
20
The center of an atom where protons and neutrons are located is the what:
metal
nucleus
isotope
Protons
21
Group 17 elements are:
Have all 8 of their valence electrons
Called Noble gases
called Halogens
Called Noble gases and have all 8 of their valence electrons
