What are the vertical columns on the periodic table called?

• Groups
• Periods
• Rows
• Sections

What is the name of Group 2 on the periodic table?

• Alkali Metals
• Noble Gases
• Transition Metals
• Alkaline Earth Metals

Which group on the periodic table contains elements that are the most stable and rarely form compounds?

• Noble gases (Group 18)

• Alkali metals (Group 1)

• Halogens (Group 17)

• Alkaline earth metals (Group 2)

How many Periods are there on the periodic table?

• 5
• 10
• 7
• 12

How does the atomic radius generally change as you move across a period from left to right?

• The atomic radius fluctuates randomly.
• The atomic radius remains the same.
• The atomic radius increases.
• The atomic radius decreases.

What happens to the number of energy levels (electron shells) as you move down from one period to the next?

• The number of energy levels increases.
• The number of energy levels decreases.
• The number of energy levels remains the same.
• The number of energy levels fluctuates randomly.

Which element is found in the 4th period and has 6 valence electrons?

• Arsenic (As)
• Bromine (Br)
• Calcium (Ca)
• Selenium (Se)

Where are metalloids located on the periodic table in relation to metals and nonmetals?

• Metalloids are located only with metals.
• Metalloids are found exclusively among nonmetals.
• Metalloids are located between metals and nonmetals on the periodic table.
• Metalloids are scattered randomly across the periodic table.

Name three physical properties that are typical of nonmetals.

• Low density, poor conductivity, brittleness
• High density, good conductivity, brittle

• Good conductivity, shiny, ductile

• Malleability, dull, shiny

Label the atom

a

b

c

positive

neutral

negative

Tags

NGSS.MS-PS1-1