what do you think you know about physics, physics is the study of matter under the effect of energy, but does this includes solid states bodies, atoms at ground states, object at microscopic size or object moving faster than light? these and more is what prompt me to ask again what is physics?
▼
for al, its atomic number is 13 and its mass number is 27. how many neutrons does it have?
it has 27-13= 14 neutron,the
atomic number is same as number of protons.
No comments:
Post a Comment