The second option - electrons are the subatomic particles with the smallest mass.
Both protons and electrons have charge (protons are positive and electrons are negative)
Protons and neutrons both equal 1 amu (atomic mass unit), whereas electrons weigh about 1/1000 amu
Electrons orbit around the nucleus, whereas protons and neutrons are inside of the nucleus
And for the last option, I already answered it
The balanced chemical equation for the Haber-Bosch process is N₂(g) + 3H₂(g) → 2NH₃(g). The Haber-Bosch process played a significant role in boosting agriculture back in the day. It paved the way for the industrial production of ammonia which is used in the manufacture of fertilizers. The process involves reacting atmospheric N₂ with H₂ using a metal catalyst under high temperature and pressure.
The relationship between two versions of a gene
The element is Si (Silicon)
More about Silicon
silicon (Si), a nonmetallic chemical element in the carbon family (Group 14 [IVa] of the periodic table). Silicon makes up 27.7 percent of Earth’s crust; it is the second most abundant element in the crust, being surpassed only by oxygen.
Silicon is a naturally occurring mineral. It's the second-most abundant element on earth after oxygen. Food sources include water, fruits, and vegetables.
Silicon supplements are sometimes used as medicine. It's not clear if silicon has a function in the human body. But there's some evidence it might have a role in forming bone and collagen.
People use silicon for weak bones (osteoporosis), aging skin, and many other conditions, but there is no good scientific evidence to support most of these uses.
Do not confuse silicon with silicone. Silicone is a group of materials resembling plastic that are used to make medical devices.
To learn more about Silicone
brainly.com/question/27002111
#SPJ4
Answer: Wavelength of light emitted when the electron in doubly ionized lithium makes a transition from E12 to E8 is 
Explanation:
Using Rydberg's Equation for hydrogen and hydrogen like atom:
Where,
= Wavelength of radiation
= Rydberg's Constant
= Higher energy level
= Lower energy level
We have:
The wavelength of the photon emitted when the hydrogen atom undergoes a transition is
