Elements in the first row (hydrogen and helium) will have outer electrons in the first energy level. Their principal quantum number is 1. Elements in the second row (lithium through neon) will have valence electrons in the second energy level with a principal quantum number of 2.
Answer:
magma upwelling and lateral expansion along the mid-Atlantic ridge
Explanation:
The answer is carbohydrate.
Answer:
false
Explanation:
sunlight, water, and rocks aren't alive. biotic factors are things that are alive