Chemistry Final Exam

Positively charged particles found in the nucleus of an atom

• Neutron

• Proton

• Electron

A neutral particle found in the nucleus of an atom

• neutron

• proton

• electron

Identify the equation to calculate the number of neutrons for Nitrogen.

• 7-7=0

• 14.0067-7=7.0067

• 14+7=21

• 14-7=7

Tags

NGSS.MS-PS1-1

Calculate the number of neutrons for potassium.

• 20

• 19

• 39

• 58

Tags

NGSS.MS-PS1-1

The atomic number of an element is equal to the number of

• protons and electrons

• protons

• electrons

• electrons and neutrons

The number of protons is equal to the number of electrons.

• True

• False

Protons + __________ = atomic mass

• electrons

• neutrons

• neither

Tags

NGSS.MS-PS1-1

Which subatomic part of an atom gives it a positive charge?

• Neutron

• Proton

• Electron

• Nucleus

Which region of an atom has a negative charge?

• The nucleus

• Both nucleus and electron cloud

• The neutrons

• The electron cloud

What is the smallest 'building block' of the elements that make up the universe?

• An atom

• An electron

• A proton

• A cell

Tags

NGSS.MS-PS1-1