ISOTOPES AND ATOMIC MASS CALCULATION

Which statement best describes the characteristic shared by 3 isotopes of the same element?

• They all have the same mass number

• They share the same number of protons

• They share the same chemical stability

• They have the same number of neutrons

What is the name of the isotope that has 106 protons, 168 neutrons, and 106 electrons?

• Seaborgium-274

• Seaborgium-106

• Seaborgium-212

• Seaborgium-62

Isotopes are atoms of the same element that vary in the number of _______________-

• protons

• electrons

• neutrons

• neutrinos

What is the difference between Barium-139 and Barium-145?

• 6 protons

• 6 neutrons

• 7 protons

• 7 neutrons

What defines the type of element an atom is?

• Number of neutrons

• Number of electrons

• Number of protons

• Number of isotopes

Which element has exactly six protons in its nucleus?

• Hydrogen

• Carbon

• Oxygen

• Chlorine

What are isotopes?

• Elements with the same number of protons but different numbers of neutrons

• Elements with the same number of neutrons but different numbers of protons

• Elements with the same number of electrons but different numbers of protons

• Elements with different numbers of protons and neutrons

How many neutrons does chlorine-35 have?

• 20

• 19

• 18

• 17

How many protons are in chlorine-37?

• 20

• 17

• 18

• 19

What percentage of chlorine found in nature is chlorine-35?

• 100%

• 75.77%

• 50%

• 24.23%