<u>Answer:</u> The number of neutrons in boron are 6.
<u>Explanation:</u>
Atomic number is defined as the number of protons or electrons that are present in a neutral atom.
Atomic number = number of protons = number of electrons
Mass number is defined as the sum of number of protons and number of neutrons present in an atom.
Mass number = Number of neutrons + Number of protons.
We are given:
Mass number = 11
Atomic number of boron = 5
Number of neutrons = Mass number - Atomic number = 11 - 5 = 6
Hence, the number of neutrons in boron are 6.
<span>has four valence electrons in its outermost energy level.
An organic compound in which a carbonyl group is bonded to two different carbon atoms is a(n) ketone.
All of the following release carbon into the atmosphere except the
sedimentation of dead organisms.</span>
Solar Energy: source Sun
Nuclear Energy: source:fission of Uranium nucleus
Sound Energy: source: Loudspeakers
Answer:
the reaction is: Na2CO3 + 2HCl ===》 2NaCl + H2O + CO2(g)
