Periodic Trends

A horizontal row of elements is called:

(Select all that apply)

• Family

• Energy level

• Group

• Period

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NGSS.HS-PS1-1

Atoms with a low ionization energy tend to be more electronegative.

• True

• False

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NGSS.HS-PS1-1

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The atom with the largest atomic radius in Group 18 is - 

• Ar
• He
• Kr
• Rn

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NGSS.HS-PS1-1

As atoms of elements in group 16 are considered in order from top to bottom, the electronegativity of each successive element....

• decreases
• increases
• remains the same
• none of the above

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NGSS.HS-PS1-1

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As you move across the periodic table atoms tend to get smaller because, ______________.

• the atoms have more mass.
• the atoms have less mass
• the atoms have more protons.
• the atoms have less electrons.

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NGSS.HS-PS1-1

As you move down the periodic table atoms get bigger.  This is because ____________.

• The atoms have more mass.
• The atoms have more protons.
• The atoms have more energy levels
• The atoms have more nuetrons

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NGSS.HS-PS1-1

When atom gains an electron, the size will

• increase

• decrease

• have no change

• smaller

Which of the following elements has the smallest atomic radius: Li, O, C, F?

• Li
• O
• C
• F

Tags

NGSS.HS-PS1-1

Which type of ion typically has a larger radius than the neutral atom?

• Anion (negatively charged)

• Cation (positively charged)

Tags

NGSS.HS-PS1-1

Which element in period 4 has the highest electronegativity?

• potassium

• calcium

• copper

• bromine

Tags

NGSS.HS-PS1-1

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