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Chapter 1 Review
Atoms and Matter
Question | Answer |
---|---|
Substances that are not evenly mixed | Heterogeneous Mixture |
Substances that are evenly mixed | Homogeneous Mixture |
A small particle that is the building block of matter | Atom |
Gravity is matter because it does not have mass and volume. True or False | False |
Each type of atom has a different number of smaller particle. True or False | True |
The substances in a mixture are bonded together. True or False | False |
All atoms of an element are alike. True or False | False |
Matter can be classified as ______ and ______ | substance and mixture |
A substance can be classified as ______ and _____ | element and compound |
A mixture can be classified as _____ and ______ | heterogeneous and homogeneous mixtures |
A substance is ______ | pure |
A mixture is _______ | impure |
Anything that has mass and takes up space | Matter |
The central region of an atom | nucleus |
Nucleus contains two particles called ____ and ____ | protons and neutrons |
the region surrounded the central area | electron cloud |
The nucleus of an atom contains (protons/electrons) and neutrons | protons |
The modern model of an atom is called the (electron-cloud/nucleus-orbit) model | nucleus-orbit |
What particle in a atom has a positive charge | proton |
What particle in an atom has no charge | neutrons |
What particle in an atom has a negative charge | electrons |
Where is most of the mass of an atom found | nucleus |
That has gained or lost electrons | ion |
A (positive/negative) ion has more protons than electrons | positive |
Adding an (proton/electron) to a neutral atom produces a new element | proton |
The nucleus has a (positive charge/negative charge) and the (least mass/most mass) of the atom | positive charge, most mass |