Isotope Practice

What isotope has 3 protons, 4 neutrons, and 3 electrons?

Li-3 or Lithium-3

What isotope has 5 protons, 6 neutrons, and 5 electrons?

B-11 or Boron-11

What isotope has 82 protons, 125 neutrons, and 82 electrons?

Pb-207 or Lead 207

What isotope has 12 protons, 13 neutrons, and 12 electrons?

Mg-25 or Magnesium-25

What isotope has 26 protons, 30 neutrons, and 26 electrons?

Fe-56 or Iron-56

What isotope has 17 protons, 18 neutrons, and 17 electrons?

Cl-35 or Chlorine-35

What isotope has 17 protons, 19 neutrons, and 17 electrons?

Cl-36 or Chlorine-36

What isotope has 17 protons, 20 neutrons, and 17 electrons?

Cl-37 or Chlorine-37

What isotope has 29 protons, 56 neutrons, and 20 electrons?

Cu-85 or Copper-85

What isotope has 20 protons, 20 neutrons, and 20 electrons?

Ca-40 or Calcium-40

What is the mass # of Lithium-7?

7

What is the mass # of Magnesium-25?

25

What is the mass # of Chlorine-36?

36

What is the mass # of Chlorine-35?

35

What is the mass # of Lead-207?

207

What is the mass # of Iron-56?

56

What is the mass # of Boron-11?

11

How many protons does Boron-11 have?

5 (it's the atomic number, remember?)

How many protons does Chlorine-37 have?

17 (it's the atomic number, remember?)

How many protons does Calcium-40 have?

20 (it's the atomic number, remember?)

How many protons does Nitrogen-13 have?

7 (it's the atomic number, remember?)

How many protons does Silver-108 have?

47 (it's the atomic number, remember?)

What is the mass number, number of protons, and number of neutrons of 7/3 Li ?

mass number = 7
protons = 3
neutrons = 4

What is the mass number, number of protons, and number of neutrons of 11/5 B ?

mass number = 11
protons = 5
neutrons = 6

What is the mass number, number of protons, and number of neutrons of 13/7 N ?

mass number = 13
protons = 7
neutrons = 6

What is the mass number, number of protons, and number of neutrons of 40/20 Ca ?

mass number = 40
protons = 20
neutrons = 20

What is the mass number, number of protons, and number of neutrons of 85/29 Cu ?

mass number = 85
protons = 29
neutrons = 56

Isotope

any of two or more versions of a chemical element, having the same number of protons in the nucleus, or the same atomic number, but having different numbers of neutrons in the nucleus, or different atomic masses

Mass

The name of an isotope is determined by the atomic __________ of that isotope.

3

The atomic mass of Helium-3 is ___.

4

The atomic mass of Helium-4 is ___.

Lithium

These are isotopes of the element ____________.

Average

The atomic mass number on the periodic table is the ____________ atomic mass of all isotopes of that element.

5

How many neutrons are in an atom of Lithium-8?

neutrons

The atomic mass of an isotope is determined by adding together the number of protons and the number of ________________.

35

In A: What is the mass of Atom I?

Chlorine

In A: What is the element of Atom I?

Chlorine-35

In A: What is the isotope name of Atom I?

Argon

In A: What is the element name of Atom II?

Argon-37

In A: What is the isotope name of Atom II?

47

What is the number of the subscript in this isotope of silver?

60

How many neutrons are in this isotope?

13

What is the mass number of this isotope?

6

How many protons are in this isotope of Carbon?

7

How many neutrons are in this isotope of Carbon?

12

How many neutrons are present in Magnesium-24?

25

What is the atomic mass of Magnesium-25?