Elements that have properties of both metals and nonmetals

What makes a metal highly reactive?

The fewest number of valence electrons.

What makes an atom stable?

Having a full valence electron shell

A pure substance with only one type of atom.

What do elements I and II have in common? (see image)

The same number of valence electrons

What is the periodic table?

An organized chart of all the known elements on earth

What do metalloids do on the periodic table?

Divide the metals from the nonmetals

Where are the metalloids located on the periodic table?

Above and below the zig zag line

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Periodic Table

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Unit 3 - Review

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Questions 20

Answers

1
Which group is the most stable
group 17
group 18
group 2
group 1
2
This element has the most electrons in period 5
Krypton (Kr)
Bismuth (Bi)
Dubnium (Db)
Xenon (Xe)
3
Which elements have the same amount of energy levels?
Those in the same period
Those in the same group
Those in the same category
Those in the same family
4
A transition metal with 8 valence electrons, 4 energy shells, and an atomic mass less than Ni
Zinc (Zn)
Copper (Cu)
Cobalt (Co)
Palladium (Pd)
5
What are metalloids?
The elements in group 18
The most reactive elements
The largest category on the periodic table
Elements that have properties of both metals and nonmetals
6
Which group is the most chemically reactive?
group 17
group 1
group 18
group 2
7
What makes a metal highly reactive?
The greatest atomic mass
The fewest number of protons
The fewest number of valence electrons.
The greatest number of valence electrons.
8
What makes an atom stable?
Having the greatest atomic number
Having the fewest number of valence electrons
Having the greatest atomic mass
Having a full valence electron shell
9
What is an element?
A combination of different atoms
It has characteristics of both metals and nonmetals
The number of protons
A pure substance with only one type of atom.
10
What do elements I and II have in common? (see image)
The same atomic mass
The same number of energy shells
The same number of valence electrons
The same number of protons
11
What subatomic particle determines an atoms chemical reactivity?
protons
neutrons
valence electrons
electrons
12
Element found in - Group 5: Period 6
Tantalum (Ta)
Molybdenum (Mo)
Strontium (Sr)
Vanadium (V)
13
What is the periodic table?
An unorganized chart of all the known elements on earth
An unorganized chart of some of the known elements on earth
An organized chart of all the known elements on earth
An organized chart of some of the known elements on earth
14
Which of the following are elements?
rt
KH
pN
Ca
15
What is the largest category on the periodic table?
Nobel Gases
Nonmetals
Metals
Metalloids
16
What group is made up of mostly gases at room temperature?
group 1
Alkali Metals
Nobel Gases
group 15
17
What do metalloids do on the periodic table?
Divide the groups from the periods
Combine the earth metals with the transition metals
Divide the earth metals from the transition metals
Divide the metals from the nonmetals
18
What elements would have the same energy levels as Element 1?
Lithium (Li), Beryllium (Be)
Hydrogen (H), Lithium (Li)
Lithium (Li), Magnesium (Mg)
Aluminum (Al), Gallium (Ga)
19
Where are the metalloids located on the periodic table?
Above and below the zig zag line
Groups 3-12
On the far left
In group 18
20
Who is more chemically similar?
Elements in the same period
Elements in the same group
Elements in the same category
Elements with the same number of energy shells

Periodic Table Flashcards | StudBud