Who am i? • i am a three-digit number• at least two of my digits are perfect squares.• u> t• only only of my digits is even• u=2h+1• my ten digit is two less than my unit digit.• t-h=3• one of my digit is 7 !

479

Step-by-step explanation:

The units digit cannot be 1 That would make the 10s digit - 1. The tens digit cannot be 9. That would make the units digits 11.

Let's try x79 If that is correct, the hundreds digit is 4 because the hundreds digit is three less than the tens.

479

479 is between 100 and 999. 4 and 9 are perfect squares. u>t. 4 is the only even number.

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.

step-by-step explanation:

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