1 Isotopes Flashcard

Front

What is the mass number for the isotope shown? Options: 29, 34, 63, 92

Back

63

Front

How many neutrons are in the nucleus of copper-63?

Back

34

Front

Atoms of an element that have a different number of neutrons are called

Back

isotopes

Front

How many protons and electrons are in the isotope shown?

Back

17 protons; 18 electrons

Front

How many neutrons in C-14?

Back

8

Front

What quantities vary between isotopes of an element?

Back

neutrons and atomic mass

Front

24.1% of all the isotopes of an element have a mass of 75.23 amu, 48.7% have a mass of 74.61 amu, and 27.2% have a mass of 75.20 amu. What is the average mass of this element?

Back

74.92 amu

Front

Calcium has three different isotopes with masses of 35.00 amu, 41.00 amu, and 40.00 amu. Which isotope is the most abundant?

Back

40.00 amu

Front

Composition of a neutral atom of the isotope ²⁶₁₂Mg

Back

12 protons, 14 neutrons, 12 electrons

Front

What is the average atomic mass of magnesium?

Back

24.31