| Questions | Answers |
|---|
| A positively charged particle that is present in the nucleus of all atoms. | |
| A sample of matter with the same composition and properties throughout. | |
| Matter that is only made up of one kind of atom. | |
| These particles have a positive charge. | |
| J.J. Thomson's cathode-ray experiments led to the discovery of the _______________ | |
| Rutherford's experiment showed that most of an atom is made up of___________ | |
| True or False? J.J. Thomson's experiments with cathode rays led to the discovery of the neutron. | |
| True or False? Fruit salad is an example of a heterogeneous mixture | |
| The atomic number of an element tells the number of __________in the nucleus of an atom of that element | |
| A dust particle is an example __________ | |
| Elements that make up about 97% of the human body | |
| A compound with the formula C6H12O6 is made up of how many atoms? | |
| Electric conductivity is a property associated with________. | |
| Elements that have characteristics of both metals and nonmetals. | |
| He developed a model called the atomic theory of matter. | |
| Matter that is NOT considered to be a single substance is called a _________. | |
| A pure substance whose smallest unit is made of atoms of more than one element. | |
| An atom of the element with the atomic number of 6 always has 6 ______ in its nucleus | |
| J.J. Thomson used the fact that ___________ charges attract each other in his cathode-ray tube experiment | |
| A substance whose smallest unit is made up of atoms of more than one element. | |
| These particles have a neutral charge. | |
| Most elements found on the left side of the periodic table are_____________ | |
| the mass number of an atom consists of the mass of the protons and _________ | |
| The mass of the mixture of the isotopes for an element. | |
Periodic Table
Planets from the Sun
Digits of Pi
