1)Mid Ocean Ridge
2) Sea Floor Spreading; New crust is formed
3) It gets subducted and melts back into the mantle
4) 1. Molten Material (funny looking rocks)
2. Drilling Samples (age of rocks)
3. Magnetic stripes
5) Subduction: Old oceanic crust is more dense and sinks
6) Sonar
7) Trench
8) Sea floor spreading
9) Subduction
10) Mid ocean ridge
Make 2 in 102 as the power of 10
10^2 = 100
101 - 10^2 = 101 - 100 = 1
Hope it helped:)
Answer:
AlBr3
Explanation:
Aluminum has three electrons on its valence shell. The Lewis model deals with combination of electrons on the valence shells of atoms to form compounds. Bromine has seven electrons on the valence shell of each bromine atom.
Three bromine atoms could combine with one aluminium atom to form aluminium bromide in which each bromine atom now has eight electrons in their valence shells according to the octet rule. Aluminium however will only have six electrons on its valence shell.