What type of particles are found in the cloud that surrounding the atom's nucleus

negative charged particles only

positively charged particles and negatively charged particles

neutral charged particles and positively charged particles

positively charged particles only

A chemist is identifying the elements present in a sample of sea water. What characteristic of an elements atoms always the elements identity?

The location of valence electrons

The number of valence electrons

Which of the following best describes an electron?

It has a negative charge and much less mass than a proton.

It has no charge and about the same mass as a proton.

It has a positive charge and much more mass than a neutron.

It has a negative charge and about the same mass as a neutron.

can be hammered into thin sheets

What is the property of most nonmetals?

Shiny and malleable in solid state

Why is group 1 highly reactive?

It has the same number of protons

It has the same number of electrons

The group number equals?

The number of valence electrons

An elements in group 18 are non reactive, stable, and inert because

they have 8 valence electrons and a full outer shell

they have 3 valence electrons and a full outer shell

they have no valence electrons and a full outer shell

Atomic Structure Periodic Table 8th grade Science

Authored by Garrick Liefer

Science

6th - 8th Grade

NGSS covered

Used 180+ times

Atomic Structure Periodic Table 8th grade Science

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48 questions

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MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The atomic number identifies the number of __________.

electrons and neutrons

atoms

protons and electrons

neutrons and protons

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Subatomic particles that have a negative charge

electrons

protons

quarks

neutrons

Tags

NGSS.MS-PS2-3

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The number 16 for the atomic element sulfur is the

ionic number

isotope

atomic mass

atomic number

Tags

NGSS.MS-PS1-1

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

How many protons does sulfur have?

Tags

NGSS.MS-PS1-1

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

How many electrons does sulfur have

Tags

NGSS.MS-PS1-1

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Subatomic particle that has a positive charge

electron

poitron

neutron

proton

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The center of an atom is called the ________________.

electron cloud

nucleus

neutrion

nuetron

Tags

NGSS.HS-PS1-8

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Atomic Structure Periodic Table 8th grade Science

The atomic number identifies the number of __________.

Subatomic particles that have a negative charge

The number 16 for the atomic element sulfur is the

How many protons does sulfur have?

How many electrons does sulfur have

Subatomic particle that has a positive charge

The center of an atom is called the ________________.

In what part of an atom can the protons and neutrons be found?

In an atom, the number of protons is equal to the number of ____________.

Which subatomic particle moves around the nucleus?

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