Atomic Symbols and Atomic Weight

Question 1

A symbol

Answer 1

Mass number

Question 2

Z

Answer 2

Atomic number

Question 3

n±

Answer 3

charge of ion

Question 4

Sum of number of protons and neutrons

Answer 4

Mass number

Question 5

Number of protons in the nucleus

Answer 5

Atomic number

Question 6

Difference of number of protons and electrons

Answer 6

charge of ion

Question 7

Isotopes are atoms of an element with the same number of ______ but a different number of ______.

Answer 7

Protons, neutrons

Question 8

3 naturally occurring isotopes of hydrogen

Answer 8

Protium
Deuterium
Tritium

Question 9

In the 3 isotopes of hydrogen, all three of them share the same ______ but different ______.

Answer 9

Atomic number (1), mass number (1,2,3)

Question 10

The masses of isotopes and their abundances are determined experimentally by ______.

Answer 10

Mass spectrometry

Question 11

Percentage of atoms with a specific atomic mass found in a naturally occurring sample of an element

Answer 11

Relative abundance

Question 12

Each isotope is represented by a ______.

Answer 12

Relative abundance

Question 13

Average atomic mass of an element; the mass you see in the periodic table

Answer 13

Weighted-average atomic mass

Question 14

Formula for atomic mass

Answer 14

∑[(isotope mass)(fractional isotope abundance)]