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Atomic Structure and Bonding Review

Authored by Stephanie Carles

Science

8th - 9th Grade

NGSS covered

Used 66+ times

Atomic Structure and Bonding Review
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25 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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Iodine, I (atomic number 53), is an essential element for human life. The model illustrates an iodine-127 atom, with 53 protons, 74 neutrons, and 53 electrons.

Which of the following would be the outcome of this essential element if one proton is added to this iodine nucleus?

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Tags

NGSS.MS-PS1-1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Magnesium reacts with another element to form a compound.

Which element MOST LIKELY combined with the magnesium?

Sodium

Argon

Sulfur

Calcium

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following compounds are covalent?

Sodium hydride (NaH)

Carbon tetrachloride (CCl4)

Magnesium chloride (MgCl2)

Magnesium chloride (NaOH)

Tags

NGSS.MS-PS1-1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which ionic compound is BOTH correctly written and named?

MgO – magnesium oxide

MnO2 - manganese oxide

NO2 - nitrogen oxide

SrBr - strontium bromide

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A. Phosphorus trifluoride

B. Boron trichloride

C. Chlorine pentafluoride


Which includes the correct formulas for these compounds?

A. F3P

B. Cl3B

C. F5Cl

A. PCl3

B. BrCl3

C. CF5

A. PF3

B. BCl3

C. ClF5

A. PhFl3

B. BoCh3

C. ChFl5

Tags

NGSS.MS-PS1-1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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In Deanna’s community, calcium fluoride occurs naturally in its drinking water. She drew several models of this compound using these spheres:


Which of Deanna’s models correctly represents a stable calcium fluoride compound?

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Tags

NGSS.MS-PS1-1

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following formula and chemical name combinations is correctly shown?

N2O2; nitrogen dioxide

N2O5; dinitrogen pentoxide

Ca2P3; dicalcium diphosphide

PCl5; phosphorus tetrachloride

Tags

NGSS.MS-PS1-1

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