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Unit 2 Quiz
| Questions |
Answers |
| All the matter we can see and touch is made up of building blocks called |
Atoms |
| The region in the center of the atom is the ________. The outer region of the atom is called the ____________________. |
Nucleus, extranuclear region |
| The number of electrons is ________ to the number of protons when the atom is in its unchanged state. |
Equal |
| Two atoms of hydrogen joined with one atom of oxygen make exactly one module of _________ |
Water |
| Molecules are in _______. |
Motion |
| Any kind of matter that has a definite shape and a definite volume is? |
Solid |
| Molecules move more when they have more _______. |
Energy |
