Most of the of an atom is concentrated in the nucleus.
a. charge
b. energy
c. space
d. mass

particle   p is an electron and particle q is a neutron

air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

hope this mark me brainliest

no starving yourself won't it will make you lose more weight what you need to do is find out what foods make you gain weight like bread and meats with fat on