two vertical vectors one with upward direction and 150 units and one with downward direction of 120 units

Step-by-step explanation:

two vertical vectors one with upward direction and 150 units and one with downward direction of 120 units,

the resultant of the vectors = 150-120 = 30 units

with upward direction.

i understand 100% 10/10 hit or miss?

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.