Matter- Midterm Review

Smallest part of an element is the __.

• molecule
• atom
• compound

Subatomic particle with a positive charge is the __.

• neutron
• proton
• electron
• nucleus

Which subatomic particle of an atom has a negative charge?

• electron
• neutron
• proton
• nucleus

Which subatomic particle of an atom has a neutral charge?

• proton
• neutron
• nucleus
• electron

Abbreviation for elements is called __.  Example:  Na, Fe, H

• symbol
• formula
• abbreviation

Pure substance found in nature that cannot be broken down, such as Oxygen, Nitrogen is called __. About 118 exist so far.

• compound

• element

• soluton

• solute

How many protons are shown in this model of Carbon?2

• 12

• 6

• 5

• 18

Tags

NGSS.MS-PS1-1

A substance that can NOT be broken down into any other substance chemically or physically is —

• solution

• mixture

• compound

• element

How many atoms of hydrogen are in C₂H₄O₂ (acetic acid)?

• 2

• 8

• 6

• 4

Tags

NGSS.MS-PS1-1

What orbits the nucleus of an atom?

• electrons

• protons

• neutrons

• nucleus