A dining hall had a total of 25 tables, some long rectangular tables and some round ones. long tables can seat 8 people. round tables can seat 6 people. on a busy evening, all 190 seats at the tables are occupied how many long tables, x and how many round tables, y are there?

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step-by-step explanation:

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the answer would be 150 books

step-by-step explanation:

if you divide 300 by 2 you will get 150

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.