Which properties were used to simplify the followin's expression? Select all that apply. (0 + 3) + 17 0 + (3 + 17) 0 + 20 20 identity property of multiplication commutative property of multiplication identity property of addition associative property of addition commutative property of addition distributive property associative property of multiplication​

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

step-by-step explanation:

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.

the answer is  

a.

4,624π mm2

step-by-step explanation: