Periodic Table Trends

Which of the following list of elements is arranged from smallest to largest atomic radius?

• A. K, Ca, Sc

• B. K, Na, Li

• C. F, Cl, Br

• D. Ge, P, O

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NGSS.HS-PS1-1

What is generally true of atoms with relatively large atomic radii?

• A. Large atoms hold their electrons very tightly.

• B. Large atoms tend to have a low ionization energy and a low electron affinity.

• C. Large atoms tend to be found on the right side of their period on the periodic table.

• D. Large atoms are usually found at the top of their group on the periodic table.

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NGSS.HS-PS1-1

What is the most accurate statement concerning ionization energy?

• A. Metals tend to have lower ionization energies than nonmetals.

• B. As you move down a group on the periodic table, ionization energy tends to increase.

• C. As you move across a period from left to right on the periodic table, ionization energy tends to increase.

• D. The noble gases tend to have the lowest ionization energies.

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NGSS.HS-PS1-2

Which factor would be most likely to shrink the size of an atom’s electron cloud?

• A. Forming a positive ion.

• B. Removing a proton.

• C. Adding an energy level.

• D. Adding a valence electron to an existing energy level.

Which of the following groups is characterized by both a high ionization energy and a low electron affinity?

• A. Alkali metals (group 1)

• B. Transition metals (groups 3-12)

• C. Halogens (group 17)

• D. Noble gases (group 18)

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What happens to the atomic numbers as you move from left to right on the periodic table?

• Increase

• Decrease

• Stay the same

• Nothing

Which of the following elements is most likely to have similar properties to those of sodium (Na)?

• Magnesium (Mg)

• Sulfur (S)

• Francium (Fr)

• Titanium (Ti)

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NGSS.HS-PS1-1

If an element has 117 protons which group will it be in on the periodic table?

• 1

• 7

• 11

• 17

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Which element is located in group 3?

• Yttrium (Y)

• Carbon (C)

• Sodium (Na)

• Lithium (Li)

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NGSS.HS-PS1-1

Which element is located in period 4?

• Zirconium (Zr)

• Silicon (Si)

• Beryllium (Be)

• Iron (Fe)

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