Atomic Structure And Isotopes

Question 1

What is the atomic number of an atom?

Answer 1

The number of protons

Question 2

What is the definition of an isotope?

Answer 2

Isotopes are atoms of the same element which have the same number of protons but different number of neutrons

Question 3

What is the mass number of an atom?

Answer 3

Number of protons and neutrons added

Question 4

What is the definition of the relative isotopic mass?

Answer 4

The relative isotopic mass is the mass of an isotope compared with 1/12 the mass of a carbon-12 atom

Question 5

What is the relative mass and charge of a neutron?

Answer 5

RM-1

RC-0

Question 6

What is the relative mass and relative charge of a proton?

Answer 6

RM-1

RC-+1

Question 7

What is the relative mass and charge of an electron?

Answer 7

RM-1/1836

RC- -1

Question 8

What is the definition of the relative atomic mass?

Answer 8

The relative atomic mass of an element is the average weighted mass of an atom of an element compared to 1/12 the mass of a carbon 12 atom