Periodic Table

Periodic Table

Assessment

Assessment

Created by

Deleted User

Chemistry

9th - 12th Grade

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Hard

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30 questions

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1.

Multiple Choice

1 min

1 pt

Which of these elements has the greatest atomic radius?

H

N

Cl

Cs

2.

Multiple Choice

1 min

1 pt

What has to occur before an atom in its ground state can emit a photon?

reversal of the spin of an electron

ionization of an electron from the atom

relaxation of an electron to a lower energy state

excitation of an electron to a higher energy state

3.

Multiple Choice

1 min

1 pt

Going from left to right in the periodic table, the atomic radius decreases. Which of the following explains the atomic radii trend of elements across a period?

There is an increase in the number of electron shells.

There is a decrease in the number of electron shells.

The attraction increases between the nucleus and the outer electrons.

The attraction decreases between the nucleus and the outer electrons.

4.

Multiple Choice

1 min

1 pt

Electronegativity is a measure of how easy it is for an atom to attract another electron. The elements He, Ne, and Ar have the lowest electronegativity values. What do these elements have in common?

They have an outer orbital full of electrons.

They have one electron in their outer orbital.

They lose a proton which makes them negatively charged.

They have an extra electron which makes them positively charged.

5.

Multiple Choice

1 min

1 pt

The ionization potential of an element is the amount of energy required to remove an electron from an isolated atom or molecule. According to the periodic table, which of the following indicates the correct decreasing order of ionization potential?

Li>Na>K>Cs

Na>K>Li>Cs

Li>K>Na>Cs

Cs>K>Na>Li

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