The atomic number is determined by the number of: a. neutrons ...

[Mr3Hunna]

The atomic number is determined by the number of:
 
  a. neutrons and protons
  b. neutrons and electrons
  c. protons and electrons
  d. protons only
  e. neutrons only

Question 2

Describe the four stages in the development of a terrestrial planet.
 
  What will be an ideal response?

[akpaschal]

Answer to Question 1

d

Answer to Question 2

(1) Differentiation, the separation of material into layers according to density. (2) Cratering, meteorite impacts, which can't occur until a solid surface forms. (3) Flooding, molten rock or water flowing over the surface. (4) Slow surface evolution, which includes erosion and plate tectonics.

[Mr3Hunna]

Both answers were spot on, thank you once again

[akpaschal]

Great! Please up vote