Please help also if you don’t know the answer then go away I don’t need you to comment about it, also no links.

C- Total pens produced that week

D- 13000

Step-by-step explanation:

C- If 3/4 of the pens are red. 3/4 of the pens is equall to 39,000 therfore 3/4(pens)=39,000

D- 3/4 of the pens are red and there are 39,000 pens, you divide these pens by 3 and the answer you get is the green pens. 39,000/3=13,000

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.