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Periodic Trends; Stoichiometry; Solutions

Authored by R I

Chemistry

10th Grade

Used 2+ times

Periodic Trends; Stoichiometry; Solutions
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43 questions

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1.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Which element in Period 2 has the greatest atomic radius?

Be

C

Na

Li

2.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Of the halogens, which has the smallest radius?

F

Br

He

At

3.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

As you move across the periodic table from left to right, the atomic radius decreases.  This is because - 

the number of protons increases, so attraction to electrons increases
the number of energy levels increases
the number of electrons increases
the atomic mass increases

4.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Electronegativity __________ from left to right within a period and __________ from top to bottom within a group.

decreases, increases 
increases, increases
increases, decreases 
stays the same, increases

5.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Which of these is a property of metals?

It's malleable
It can't conduct electricity
They are used in food
It's very brittle

6.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Identify the element that is non-reactive (inert) with 4 energy levels.

Krypton
Argon
Potassium
Calcium

7.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

When atom gains an electron, the size will

increase

decrease

have no change

smaller

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