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Grade8 PeriodicTable
understanding the format of the groups and periods
| Question | Answer |
|---|---|
| How many groups are there? | 18 |
| What is a group or family of elements? | a column |
| What is a period of elements? | a row |
| How many periods are there? | 7 |
| Does the atomic number(number at top) show the number of protons in the element? | yes |
| If an element has 7 protons, how many electrons does it have? | 7 |
| The atomic mass is the number shown below the chemical symbol and name. Is it the total of protons and neutrons? | yes |
| an electron in the outermost energy level of and atom is | a valence electron |
| Can you use the periodic table to find the number of valence electrons? | yes |
| Look at a periodic table and determine the number of valence electrons in the element Oxygen. | 6 |
| How many neutrons does Oxygen have? | 8 |
| How many electrons does Sodium have? | 11 |
| How many protons does Sodium have? | 11 |
| What does Periodic Law state? | That repeating chemical and physical properties of elements change periodically with the elements' atomic numbers. |
| Name the particles that form together to make protons and neutrons. | quarks |
| Name the "glue" that binds the quarks together. | gluons |
Created by:
ahsimmon
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