An atom with 5 protons 6 neutrons and 8 electrons has what mass number

11 is the atomic mass of the atom.

Step-by-step explanation:

To find atomic mass, add the amount of the protons and neutrons together.

Please mark brainliest. Thanks!!!

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

a=24; b=12

step-by-step explanation:

a/b=2: 1

a=2b

36/(1+2)=12

b=12

a=24