There are 7 electrons on the third energy level
<h3>Further explanation
</h3>
The maximum number of electrons that can be filled in the nth electron shell is 2n²(n=shell)
• K shell (n = 1) maximum 2 x 1² = 2 electrons
• L shell (n = 2) maximum 2 x 2² = 8 electrons
• M shell (n = 3) maximum 2 x 3² = 18 electrons
• N shell (n = 4) maximum 2 x 4² = 32 electrons
Electron configuration of Si : 1s²2s²2p⁶3s²3p⁵ = 17 electron
The electron distribution :
K shell(n=1) ⇒the first energy level= 2
L shell(n=2) ⇒the second energy level= 8
M shell(n=3)⇒the third energy level = 7
The answer is B) Accurate. Authentic in this case basically means Accurate. They try to create accurate models. Plus, it is the only one that really actually makes sense.
~Silver
The statement that is true is all matter has mass
Answer:
Explanation: The main difference between Genetic and Hereditary Diseases is that genetic disease is a condition which occurs due to an abnormality in the individual’s genome while a hereditary disease is a condition caused by a mutation of a gene which can be characteristically transmitted from one generation to another, also The main difference between these two terms lies in the fact that hereditary diseases have the potential of being carried from one generation to another whereas a genetic disease can either be hereditary or not, but there will always be a mutational change in the genome.
Answer:
subscripts show the number of atoms of each type in the molecule.