Exploring Subatomic Particles in Isotopes

What is the number of protons in the isotope Carbon-14?

• 6

• 7

• 8

• 14

How many neutrons are present in the isotope Uranium-238?

• 92

• 146

• 238

• 144

Tags

NGSS.HS-PS1-8

Which of the following isotopes has the same number of neutrons as protons?

• Helium-4

• Carbon-12

• Oxygen-16

• Nitrogen-14

Calculate the number of electrons in a neutral atom of the isotope Neon-20.

• 10

• 20

• 30

• 40

Explain why isotopes of the same element have different mass numbers but the same atomic number.

• Isotopes have different numbers of protons.

• Isotopes have different numbers of neutrons.

• Isotopes have different numbers of electrons.

• Isotopes have different numbers of atoms.

Determine the number of subatomic particles in the isotope Chlorine-37, given that its atomic number is 17.

• 17 protons, 20 neutrons, 17 electrons

• 17 protons, 17 neutrons, 20 electrons

• 20 protons, 17 neutrons, 17 electrons

• 17 protons, 18 neutrons, 17 electrons

Tags

NGSS.MS-PS1-1

If an isotope has 15 protons and 16 neutrons, what is its mass number?

• 15

• 16

• 31

• 30

Compare the isotopes Hydrogen-1, Hydrogen-2, and Hydrogen-3 in terms of their neutron numbers.

• 0, 1, 2

• 1, 2, 3

• 1, 1, 1

• 0, 0, 0

Given the isotope Boron-11, with an atomic number of 5, calculate the number of neutrons.

• 5

• 6

• 11

• 16

Tags

NGSS.MS-PS1-1

Why do isotopes of the same element exhibit similar chemical properties?

• They have the same number of neutrons.

• They have the same number of protons.

• They have the same number of electrons.

• They have the same mass number.