Plese i am new
on the basis of bohr's model, the radius of the 3rd orbit
is -
(a) equal to the radius of first orbit
(b) three times the radius of first orbit
(c) five times the radius of first orbit
(d) nine time the radius of first orbit

The molecular formula for caffeine is cshion402. which of the following elements is not found in caffeine?

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.

Is a chemical message sent by another individual.