Isotopes

Isotopes

Multiple Choice

Atomic Number is equal to the number of _________.

• neutrons

• protons

• electrons

• protons and neutrons

Multiple Choice

An atom that has gained or lost an electron or electrons is a(n)

• atom

• ion

• isotope

• charged atom

Multiple Choice

An atom that gains electrons forms an ion with a ________ charge.

• positive

• negative

• neutral

Multiple Choice

An isotope is an atom of the same element that has a different number of _____.

• protons

• neutrons

• electrons

Multiple Choice

The biggest difference between isotopes of the same element are the masses.

• False

• True

Multiple Choice

An isotope of an element will react the same as a different isotope of the same element.

• true

• false

Multiple Choice

Carbon has an atomic number of 6. Which isotope has 8 neutrons?

• Carbon-12 or C-12

• Carbon-13 or C-13

• Carbon-14 or C-14

Multiple Choice

Lithium has 3 isotopes, which isotope has 4 neutrons?

• Lithium-6 or Li-6

• Lithium-7 or Li-7

• Lithium-8 or Li-8

Multiple Choice

What is an ion of Oxygen called that has 10 neutrons and 8 protons? (Oxygen has an atomic number of 8)

• Oxygen-10

• Oxygen-16

• Oxygen-18

An isotope can be written as the symbol and atomic mass Cl-17.

Multiple Choice

If Barium has an atomic mass of 141 and an atomic number of 56 how many neutrons does it have?

• 85

• 56

• 141