Find matrices of orthogonal projections onto all 4 fundamental subspaces of the matrix a = 0 @ 1 1 1 1 3 2 2 4 3 1 a : note, that really you need only to compute 2 of the projections. if you pick an appropriate 2, the other 2 are easy to obtain from them (recall, how the projections onto e and e? are related).

the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.

180-142=38 for the acute angle next to the entry

90+38=128

180-128=52

a=52

step-by-step explanation: