Question |
Answer |
what is in the nucleus |
protons and neutrons |
a mixture in which two or more substances are evenly mixed but not bonded together |
homogeneous mixture |
a mixture in which the substances are held together by chemical bonds and act as a unit |
heterogeneous mixture |
anything that has mass and takes up space |
matter |
a substance made of only one kind of atom |
element |
a small particle that is the building block of matter |
atom |
substance made of two or more elements that are chemically joined in a specific combination |
compund |
two or more atoms that are held together by chemical bonds and act as a unit |
molecule |
matter with a composition that is always the same |
substance |
gravity ____ matter because it does not have mass and volume |
isn't |