25 points 1. There are 34 rose bushes currently in the park. Park workers will plant
more rose bushes today.
When the workers are finished there will be 70
rose bushes in the park. How many rose bushes did the workers plant
today?
34 + 70 = x; x = 104
34 - x = 70 ; x = 36
34 + x = 70; x = 36
70 - 34 = x; x= 36

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.

just sum

10 + 10 = 20