The Atom

Old pictures of the atom from science textbooks are wrong because _____

• they show the nucleus at the center

• they're not drawn to scale

• the nucleus is drawn too small

• the electrons are on the outside

Tags

NGSS.MS-PS1-1

In terms of matter, the atom is almost entirely filled with _____

• orbiting electrons

• charged protons

• heavy neutrons

• empty space

Tags

NGSS.MS-PS1-1

Most of the mass in an atom is made up of _____________________?

• protons and electrons

• protons and neutrons

• neutrons and electrons

• electrons and quarks

Tags

NGSS.MS-PS1-1

The Model of the ATOM has:

• Changed many times

• Never changed

• Changed once

Tags

NGSS.MS-PS1-1

True or False? Neutrons have a negative charge

• True

• False

Of the three subatomic particles, which is the smallest and the lightest?

• protons 

• neutrons

• electrons

• They are all equal.

What are Subatomic Particles?

• The entire atom

• the tiny parts inside the atom

• The electron cloud and space surrounding the atom

Tags

NGSS.MS-PS1-1

The positively charged particles of an atom are the ________.

• electrons

• protons

• neutrons

• protons & neutrons

Tags

NGSS.MS-PS1-1

The negatively charged particles of an atom are the ______.

• electrons

• protons

• neutrons

• protons & neutrons

Tags

NGSS.MS-PS1-1

Oxygen’s atomic number is 8. This means that an oxygen atom must have

• 8 electrons

• 8 protons

• 8 neutrons

• a mass number of 8

Tags

NGSS.MS-PS1-1