1. Go to Lewis Structures (electron dot diagrams). Fill in the chart. 2.
3
4
4
Number
of
Valence
Electrons
$
6
5
8
7
Helium
Group 1
Example Hydrogen (Alkali
metals)
Group II
Group VIII
(alkali
except
Group V11
Group III Group IV Group V Group VI
earth
Helium
(Halogens)
metals)
(Noble
Gases)
Lewis
Structure
(e-dot
diagram)

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

→

2b2t

explanation:

2b2t

um i think it might be a car?