Matter and Bonding Review

Atomic radius generally increases as we move

•  down a group and from right to left across a period
• up a group and from right to left across a period
• down a group and from left to right across a period
• up a group and from left to right across a period

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NGSS.HS-PS1-1

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Which one of the following atoms has the largest radius?

• Ba
• S
• F
• N

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NGSS.HS-PS1-1

Why does Cl have a smaller radius than Si?

• It has more energy levels

• It has fewer energy levels

• It has a more effective nuclear charge

• It has a less effective nuclear charge

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NGSS.HS-PS1-1

As you go down a group, the amount of shielding....

• increases
• decreases
• stays the same

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NGSS.HS-PS1-1

Which of the following elements has the most "shielding" electrons?

• Nitrogen
• Phosphorus
• Arsenic
• Bismuth

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NGSS.HS-PS1-1

when atom gain an electron (negative) the size of atom

• Increase

• Decrease

• No change

• Small

Which of the following sequences corresponds to a correct trend in ionization energy?

• Cl > S > P > Al
• Sr > Ca > Mg > Be
• Rb > K > Na > Li
• Rb > Sr > I > Xe

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NGSS.HS-PS1-1

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__________ have the lowest first ionization energies of the groups listed.

• Transition elements
•  Halogens
• Alkaline earth metals
• Alkali metals

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Sodium is much more apt to exist as a cation than is chlorine. This is because __________

• chlorine is a gas and sodium is a solid
• chlorine is more metallic than sodium
• chlorine has a greater ionization energy than sodium does
• chlorine has a greater electron affinity than sodium does

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NGSS.HS-PS1-1

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Of the following elements, __________ has the most negative electron affinity.

• Be
• N
• F
• Li

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NGSS.HS-PS1-1

NGSS.HS-PS1-2