Answer:
Ka= 2.3 x 10^-11
Explanation:
so Ka x Kb = Kw where Kw=10^-14 at 25 degrees Celsius
plugging in Kb and Kw, we have
Ka x 4.4 x 10^-4 = 10^-14
solving for Ka,
Ka= (10^-14)/(4.4 x 10^-4)
Ka= 2.3 x 10^-11
How many valence electrons are in an atom of phosphorus?
a. 2
c. 4
b. 3
d. 5 Please select the best answer from the choices provided A B C D
There are five valence
electrons are in an atom of phosphorus. The answer is letter D.
Phorgum is an arrangment similar to the periodic table. We may arrange elements or compounds based on its properties. Arrangement can be made on the basis of rows, columns, ascending and descending order.
Explanation:
The different subatomic particles in an atom are the:
- Protons which are the positively charged particles.
- Electrons which are the negatively charged particles.
- Neutrons which do not carry any charges.
Protons and neutrons are located in the nucleus of an atom which is the tiny center of the atom.
Electrons orbits around the nucleus and fill the rest of the volume of atom.
