Intro to Atoms

Changing which subatomic particle changes the mass AND the charge?

• proton

• neutron

• electron

What would you change in an atom of Carbon if you were trying to make the atom more stable?

• protons in the nucleus

• neutrons in the nucleus

• electron in the orbitals

• neutrons in the orbitals

If you want to change the charge on an atom of Lithium, what would you change?

• protons

• neutrons

• electrons

What is the atomic mass of "F"

• 9

• 18

• 10

• 19

Most of the mass in an atom is concentrated in the...

• electrons

• nucleus

• protons

• empty space

How many neutrons does Nitrogen have?

• 14

• 7

• 15

• 18

The atomic number can be either the number of ______________ or the number of ___________.

• neutrons, protons

• protons, electrons

• neutrons, electrons

• nucleus, protons

"Everything is composed of atoms" was stated by:

• Democritis

• Dalton

• Moseley

• Einstein

Tags

NGSS.MS-PS1-1

The nucleus of an atom can be described as:

• spacious and negatively charged

• dense and positively charged

• spacious and positively charged

• dense and negatively charged

Tags

NGSS.HS-PS1-8

The word "atom" comes from a Greek word that means

• Invisible

• Indivisible

• Undivided