2.1 Atoms, Ions And Compounds

Question 1

What is the definition of an Isotope ?

Answer 1

Atoms of the same element with the same number of electrons, but with a different number of neutrons

Question 2

What’s the relative mass and charges of Protons,Neutrons and Electrons ?

Answer 2

Proton : +1 , 1
Neutron : 0 , 1
Electron : -1 , 1/1836

Question 3

What is a Cation ?

Answer 3

A Positive Ion

Question 4

What is an Anion

Answer 4

A negative ion

Question 5

What can properties differ between isotopes ?

Answer 5

Physical properties : higher melting point, boiling point and density