The first shell can hold up to 2 electrons, the second shell can hold up to 8 (2 + 6) electrons, the third shell can hold up to 18 (2 + 6 + 10) and so on.
Answer:8
in the respiratory system
a.
Explanation:
Answer:
The van't hoff factor of 0.500m K₂SO₄ will be highest.
Explanation:
Van't Hoff factor was introduced for better understanding of colligative property of a solution.
By definition it is the ratio of actual number of particles or ions or associated molecules formed when a solute is dissolved to the number of particles expected from the mass dissolved.
a) For NaCl the van't Hoff factor is 2
b) For K₂SO₄ the van't Hoff factor is 3 [it will dissociate to give three ions one sulfate ion and two potassium ions]
Out of 0.500m and 0.050m K₂SO₄, the van't hoff factor of 0.500m K₂SO₄ will be more.
c) The van't Hoff factor for glucose is one as it is a non electrolyte and will not dissociate.
A. ca is the answer because its short for carbon
Given parameters:
Number of protons = 1
Number of electrons = 1
Number of neutrons = 1
unknown:
Total charge = ?
Atoms are made up of elementary particles of protons neutrons and electrons.
Protons are the positively charged particles in an atom
Electrons are the negatively charged particles
Neutrons do not carry any charges
To find the total charge on an atom; simply find the difference between the number of protons and electrons.
Total charge = Number of protons - number of electrons
= 1 - 1
Total charge is 0
Therefore, the total charge is zero, 0
