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Atomic Structure Review

Authored by Pearl Jimenez

Science

6th - 9th Grade

NGSS covered

Atomic Structure Review
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10 questions

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1.

MATCH QUESTION

15 mins • 3 pts

Match the Following

The dense center of an atom containing protons and neutrons.

Element

The smallest unit of an element that keeps the element’s chemical properties.

Neutron

Particles with a neutral charge found in the nucleus of an atom.

Atom

A substance that cannot be broken down into simpler substances by chemical means.

Proton

Positively charged particles found in the nucleus of an atom.

Nucleus

Tags

NGSS.MS-PS1-1

2.

MATCH QUESTION

15 mins • 3 pts

Match the following

A group of atoms held together by chemical forces.

Electron

A substance formed from two or more atoms chemically united in fixed proportions.

Valence Electron

Areas around the nucleus filled with electrons. 

Molecule

A negatively charged subatomic particle located around the nucleus of an atom.

Electron Shell

The electrons filling the outermost shell; react with other atoms.

Compound

Tags

NGSS.MS-PS1-1

3.

MATCH QUESTION

15 mins • 3 pts

Match the following

Elements that are malleable, ductile, and good conductors; typically shiny.

Period

All known elements arranged in order by atomic number.

Metal

Horizontal rows of elements that have the same number of electron shells. 

Periodic Table

Vertical columns of elements that have the same amount of valence electrons.

Atomic Mass/Mass Number

The average number of protons and neutrons in one atom of an element.

Family/Group

4.

MATCH QUESTION

15 mins • 3 pts

Match the following

An element that has properties that fall between metals and nonmetals.

Metalloid

Elements that are brittle, poor conductors, and have low melting and boiling points.

 Nonmetal

Elements in group 18 that have very low reactivity.

Noble Gas

5.

REORDER QUESTION

15 mins • 5 pts

Using a periodic table (you can use the one in the textbook) order the following elements by mass number, least to greatest.

Thallium

Boron

Radon

Hydrogen

Gallium

6.

REORDER QUESTION

15 mins • 5 pts

Using a periodic table (you can use the one in the textbook) order the following elements by # of Electron Shells, least to greatest.

Barium

Sodium

Strontium

Dubnium

Calcium

7.

REORDER QUESTION

15 mins • 5 pts

Using a periodic table (you can use the one in the textbook) order the following elements by # of valence electrons, least to greatest.

Oxygen

Barium

Neon

Potassium

Carbon

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