Sec 1 G3 Science Chp 8 Quiz 1

An ____ is the basic building block of matter.

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NGSS.MS-PS1-1

The relative charge of an electron is ​ (a)   ​ and the relative mass of a proton is ​ ​ (b)  

• -1
• +1
• 0
• 1
• 1/1836
• 1/1840

The three subatomic particles in an atom are called protons, _________ and neutrons

Protons, electrons and neutrons are examples of _____________ particles?

Label on the image where the electron is located in an atom.

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NGSS.MS-PS1-1

Why is an atom electrically neutral?

• The atom contains neutrons, which have no charge.

• The nucleus contains both protons and neutrons.

• The electrons are located in the shells outside the nucleus.

• There is an equal number of protons and electrons in an atom.

Which statement about atoms is correct?

• The mass of an atom is almost entirely due to its nucleus.

• The nucleus and the electrons repel each other.

• The protons and neutrons have opposite charges.

• The shell nearest the nucleus always contains the most electrons.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Look at the Periodic Table. There are ​​ (a)   protons, ​ ​​9 electrons and ​ (b)   neutrons in an atom of fluorine.

• 9
• 10
• 19
• 29

Tags

NGSS.MS-PS1-1

Which particle is NOT an atom?

• A

• B

• C

• D

• E

Elements in the Periodic Table are arranged in order of increasing ___ number?

• electron

• neutron

• proton