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| 10847805909 | What are the subatomic particles of an atom? | protons, neutrons, electrons |  | 0 |
| 10847808924 | Where in the atom do you find protons? | nucleus | 1 | |
| 10847810330 | Where in an atom do you find electrons? | On the outside of the nucleus | 2 | |
| 10847813179 | What charge does a proton have? | positive | 3 | |
| 10847813180 | What charge does an electron have? | negative | 4 | |
| 10847814568 | What charge does a neutron have? | neutral | 5 | |
| 10847816984 | Where do you find neutrons? | nucleus | 6 | |
| 10847819031 | How many elements are known to scientist? | More than 100 | 7 | |
| 10847820894 | How many elements are found in living organisms? | Around 24 elements | 8 | |
| 10847823966 | What is an element? | a pure substance that contains only ONE type of atom. | 9 | |
| 10847824711 | What is a compound? | a substance that contains TWO or more elements (Salt/NaCl) | 10 | |
| 10847830822 | What are the two main types of chemical bonds? | ionic and covalent | 11 | |
| 10847831600 | How does an ionic bond form? | when electrons are transferred from one atom to another | 12 | |
| 10847832659 | How does a covalent bond form? | when electrons are shared | 13 | |
| 10847835447 | What is a macromolecule? | a molecule containing a very large number of atoms, such as a protein, carbohydrate or nucleic acid, . | 14 | |
| 10847837683 | What are the four groups of organic molecules found in living things? | Carbohydrates, lipids, nucleic acids, proteins | 15 | |
| 10847840306 | What is an atom? | the most basic unit of matter | 16 | |
| 10847843866 | How do you find out the number of protons an atom has? | atomic number |  | 17 |
| 10847845950 | How do you find out the number of electrons an atom has? | The number of electrons are equal to the number of protons | 18 | |
| 10847848083 | How do you find out the number of neutrons an atom has? | Mass Number - protons = neutrons | 19 | |
| 10847863549 | How do you find out the mass number of an atom? | Use the periodic table; it is usually below the atomic symbol |  | 20 |
| 10847873777 | How many electrons can fit in the first orbital/shell of an atom? | two (2) | 21 | |
| 10847867907 | How many hydrogen atoms does a water molecule have? How many oxygen atoms does a water molecule have? | Two hydrogen atoms; one oxygen atom | 22 | |
| 10847884170 | How many electrons can fit in the third orbital/shell of an electron? | eight (8) | 23 | |
| 10847887131 | How many electrons can fit in the second orbital/shell of an electron? | eight (8) | 24 |
