02. Atoms, Molecules, and Ions

In order for an atom to be neutral what has to be true?

• The atom has more protons than neutrons
• The atom has more neutrons than protons
• The atom has the same number of protons and neutrons
• The atom has the same number of protons and electrons

Which subatomic particle has a negative charge in the atom?

• proton
• neutron
• electron
• quark

Tags

NGSS.MS-PS2-3

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 atomic number represents the identity of the ________________.

• mass of the atom
• element
• electrons
• isotopes

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the electrical charge of a proton?

• 1+
• 1-
• neutral
• 2-

Tags

NGSS.HS-PS3-5

The atomic particle with no charge is the...

• proton
• neutron
• electron
• nucleus

The atomic particle with a positive charge is the...

• proton
• neutron
• electron
• nucleus

The atomic particle with a negative charge is the...

• proton
• neutron
• electron
• nucleus

Tags

NGSS.MS-PS2-3

What atom matches this electron configuration?
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰

• Zinc
• Copper
• Nickel
• Germanium

Tags

NGSS.HS-PS1-1

What atom matches this electron configuration?
1s²2s²2p⁶3s²

• Neon
• Magnesium
• Aluminum
• Potassium

Tags

NGSS.HS-PS1-1