Exploring the Atom

What does the Bohr Model illustrate about an atom?

• The distribution of protons and neutrons

• The exact pathways of electrons

• The energy levels of electrons in orbits around the nucleus

• The random motion of subatomic particles

Which particle is not found in the nucleus of an atom?

• Proton

• Neutron

• Electron

• Quark

What does the atomic number of an element represent?

• The number of protons in the nucleus

• The number of electrons in the outer shell

• The total number of neutrons and protons

• The number of electron shells

How many electron shells are filled in a neutral atom of neon (Ne)?

• 1

• 2

• 3

• 4

What is the maximum number of electrons that can fit in the second electron shell?

• 2

• 8

• 18

• 32

Which subatomic particle determines the identity of an element?

• Electron

• Neutron

• Proton

• Positron

What is the term for the number of protons plus neutrons in an atom's nucleus?

• Atomic number

• Mass number

• Electron number

• Isotope number

Which of the following is true about the nucleus of an atom?

• It contains only neutrons

• It is negatively charged

• It contains protons and neutrons

• It is the only part of the atom

Which element has an atomic number of 1?

• Helium

• Hydrogen

• Oxygen

• Carbon

What is the charge of the nucleus of an atom?

• Neutral

• Positively charged

• Negatively charged

• Variable

Tags

NGSS.HS-PS1-8