Smallest part of matter that retains the characteristics of that substance.

• atom

• compound

• molecule

• neutron

Tags

NGSS.MS-PS1-1

Which of the following are found in the nucleus of an atom? Choose all that apply.

• proton

• neutron

• electron

Which of the following has a -1 charge associated with it?

• proton

• neutron

• electron

If the number of protons and electrons are equal, what charge will an atom have?

• positive

• negative

• no charge (neutral)

The order of the elements on the periodic table is based on the number of ___.

• protons

• neutrons

• electrons

• protons and neutrons

Elements in the same column (group/family) have the same number of ___.

• electrons

• protons

• valence electrons

• core electrons

Tags

NGSS.HS-PS1-1

Chemical properties of an atom are determined by the number of ___.

• protons

• neutrons

• electrons

• valence electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

To create an ion, you must gain or lose ___.

• protons

• neutrons

• electrons

True or False: Ions are more reactive than atoms because atoms have a full outermost (valence) electron shell.

• True

• False

• Not enough information to determine

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Carbons atomic number is 6, meaning it has ___.

• 6 total protons and neutrons

• 6 neutrons

• 6 protons

• 6 neutrons and electrons