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Atomic and ionic radius

Last updated over 1 year ago

5 Nsɛmmisa

1

1

1

2

7

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5.

Categorize each given characteristic to describe the reason for the trends in atomic radius on the Periodic Table

number of protons increase
electron shielding
electron replusion
number of energy levels increase
strong effective nuclear charge
number of energy levels remains the same
atomic number increases

Atomic radius trend down a group (top to bottom)
Atomic radius trend across a period (left to right)

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1.

What occurs when an atom of chlorine forms a chloride ion?

the chlorine atom gains an electron, and its radius becomes smaller

the chlorine atom gains an electron, and its radius becomes larger

the chlorine atom loses an electron, and its radius becomes smaller

the chlorine atom loses an electron, and its radius become larger

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2.

Which atom has the largest atomic radius?

potassium

rubidium

francium

cesium

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3.

Which ONE of the following electron configurations represents an ion of an alkali metal?

1s²

1s²2s²

1s²2s²2p⁵

1s²2s²2p⁶3s¹

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4.

How does the ionic and atomic radius of sodium compare with those of sulphur?

A

B

C

D