Which of the following is NOT true about Noble Gases?

They react normally with other elements

Which statement is true?

Each element has a unique atomic number

At the atomic level, what makes elements reactive?

Exchanging or sharing electrons

Which of the following is NOT true about alkali metals?

They are usually stored in water

Valence electrons are...

The electrons in the outer energy level of an atom

What gives elements in a family or group similar properties?

The same number of valence electrons

Which statement is false?

Elements at the far left of the Periodic Table are nonmetals

Mendeleev's Periodic Table was useful because it...

Allowed for prediction of the properties of missing elements

Most nonmetals are...

Poor conductors of electric current

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Periodic Table Review

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Holt Physical Science Chapter 12

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Questions 26

Answers

1
Which elements often share properties?
Elements in a horizontal row
Elements in a period
Elements of the same color
Elements in a group
2
Where are most of the metals located on the Periodic Table?
In a staircase fashion
Left-hand side
Right-hand side
3
How many valence electrons does Aluminum (Al) have?
13
26
5
3
4
Which of the following is NOT true about Noble Gases?
They react normally with other elements
They have a complete set of valence electrons
All of them are found in Earth's atmosphere in tiny amounts
They are colorless and odorless at room temp
5
Which statement is true?
Each element has a unique atomic number
All of the elements exist in approximately equal quantities
All elements are found in their uncombined form in nature
Every element occurs naturally
6
Use your Table: Which of the following elements is the least metallic (all are in same period)?
Se
Co
Zn
V
7
At the atomic level, what makes elements reactive?
Having a filled outer energy level
Having the same number of protons
Having the same number of electrons
Exchanging or sharing electrons
8
Which group contains the MOST reactive gases?
Halogens
The Oxygen Group
The Carbon Group
Noble Gases
9
What is the most abundant element in the universe?
Hydrogen
Helium
Carbon
Oxygen
10
Which of the following is NOT true about alkali metals?
They are usually stored in water
They can easily give away their one valence electron
They are the most reactive of all the metals
They can be cut with a knife
11
Which of the following are in a staircase shape on the Periodic Table?
Nonmetals
Metalloids
Metals
12
How do the physical and chemical properties of the elements change?
Within a group
Across each period
Within a family
Across each group
13
Valence electrons are...
The electrons in the innermost energy level of an atom
The electrons in the outer energy level of an atom
The last electron added to an atom
Only relevant for ions
14
Most metals are ________ at room temperature.
Solid
Liquid
Gas
Plasma
15
Which of the following groups contains the least reactive metals?
Alkaline Earth Metals
Noble Gases
Alkali Metals
Transition Metals
16
What gives elements in a family or group similar properties?
The same atomic mass
The same number of protons in their nuclei
The same number of total electrons
The same number of valence electrons
17
Horizontal rows on the Periodic Table are called ___________.
Periods
Groups
Families
18
Which group is known for containing unstable, radioactive metals?
Alkali Metals
Alkaline Earth Metals
Actinides
Lanthanides
19
Use your Periodic Table. Are the properties of Li more like H, Be or Na?
H
It's impossible to tell
Be
Na
20
Use your Periodic Table. Which element is NOT an Alkaline Earth Metal?
Sodium
Magnesium
Barium
Calcium
21
Repeating chemical and physical properties of elements change periodically with atomic # = ...
Periodic Hypothesis
Periodic Law
Periodic Theory
Periodic Theorem
22
On your Periodic Table, the number in the upper left corner is....
Group number
Atomic mass
Number of valence electrons
Atomic number
23
Which of the following has 6 valence electrons?
Carbon
Neon
Oxygen
Nitrogen
24
Which statement is false?
Elements i same group have same number of valence electrons
There are more metals than nonmetals on the Periodic Table
Elements at the far left of the Periodic Table are nonmetals
Elements are arranged by increasing atomic number
25
Mendeleev's Periodic Table was useful because it...
Had no empty spaces
Showed the atomic number of the elements
Allowed for prediction of the properties of missing elements
Showed the elements arranged by atomic number
26
Most nonmetals are...
Shiny
Poor conductors of electric current
Flattened when hit with a hammer
Solids at room temperature

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