The five main branches of chemistry are organic chemistry, inorganic chemistry, analytical chemistry, physical chemistry and biochemistry. Chemistry can be further divided into many sub-branches that may fall under more than one of the main branches.
D sublevel because the s sublevel has one orbital, the p sublevel has three orbitals, the d sublevel has five orbitals, and the f sublevel has seven orbitals. In the first period, only the 1s sublevel is being filled.
D. 6 protons and 7 neutrons
As proton remains constant
Explanation:
I hope you interested about the chemical what they add in tea
Answer:8
in the respiratory system
a.
Explanation: