How are elements and compounds similar?

they are both broken down by physical changes

they are both made up of different kinds of atoms

they are both listed on the periodic table

How does this equation demonstrate the law of conservation of matter?

The equation has the same number of each type of atom on both sides of the equation.

The equation does not show the law of conservation of matter.

There are more H atoms in the products than in the reactants.

There are more Cl atoms in the reactants than in the products.

Where are the metalloids located on a periodic table?

Under the main part of the periodic table

Luster, malleability, ductility, and conductivity are all properties of

Metals, nonmetals, and metalloids

A mixture of elements and a compound

The atomic mass is the total number of protons + neutrons in an atom. Why does the atomic mass NOT include electrons?

Electrons are so small that they have no mass

Electrons are more massive than protons and neutrons

Electrons orbit around the nucleus so quickly that their mass cannot be calculated

Which statement correctly describes the location of each subatomic particle within an atom?

Protons and neutrons are inside the nucleus, and electrons orbit around the nucleus in an electron cloud

Protons and electrons are inside the nucleus, and electrons orbit around the nucleus in an electron cloud

Electrons and neutrons are inside the nucleus, and electrons orbit around the nucleus in an electron cloud

Protons and neutrons are inside the nucleus, and some neutrons also orbit around the nucleus

Which equation does NOT demonstrate the law of conservation of matter?

All the equations demonstrate the law of conservation of matter

Atoms, the periodic table, chemical reactions, and classification of matter

Authored by Aileen Cuthbertson

Science

6th - 8th Grade

NGSS covered

Used 141+ times

Atoms, the periodic table, chemical reactions, and classification of matter

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Particle of the nucleus that does not have a charge

proton

electron

neutron

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Particle of the nucleus that has a positive charge

proton

neutron

electron

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The chemical formula for methane gas is CH4. How many atoms of carbon are in one molecule of methane?

This indicates the number of protons in the nucleus of an atom

atomic mass

atomic number

valence

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

This indicates the sum of the protons and neutrons in the nucleus of an atom

atomic number

atomic mass

valence

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The path that electrons follow around the nucleus of an atom

ion

valence electrons

orbit or "shell"

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many protons does an atom of carbon contain?

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Atoms, the periodic table, chemical reactions, and classification of matter

Particle of the nucleus that does not have a charge

Particle of the nucleus that has a positive charge

The chemical formula for methane gas is CH4. How many atoms of carbon are in one molecule of methane?

This indicates the number of protons in the nucleus of an atom

This indicates the sum of the protons and neutrons in the nucleus of an atom

The path that electrons follow around the nucleus of an atom

How many protons does an atom of carbon contain?

How many neutrons does an atom of Beryllium have?

How are elements and compounds similar?

How many neutrons does an aluminum atom have?

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