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2016 1st Part of PT
Review of the periodic table
| Question | Answer |
|---|---|
| Number of groups on periodic table | 18 |
| Number of periods on the periodic table | 7 |
| Group 2/ 2A elements | Alkali Earth Metals |
| Can be hammered without breaking | malleable |
| Group 18/ 8A elements | Noble gases |
| first periodic table arranged elements by ____________ | increasing atomic mass |
| Shatters when hammered | brittle |
| number of protons | atomic number |
| current periodic table arranges elements by _________ | increasing atomic number |
| change in number of electrons | ion |
| change in number of protons | a different element |
| change in number of neutrons | isotope |
| can be formed into wires | ductile |
| aka poor conductor of heat and/or electricity | insulator |
| has properties of both metals and nonmetals | metalloid |
| these make up the majority of the periodic table | metals |
| subatomic particle with a negative charge | electron |
| subatomic particle with a neutral charge | neutron |
| subatomic particle with a positive charge | proton |
| the 2 subatomic particles found in the nucleus; the mass | protons & neutrons |
| the 2 subatomic particles in equal numbers if atom is neutral | protons & electrons |
| subatomic particle responsible for the volume & chemical properties | electrons |
| Group 1/1A elements | Alkali Metals |
| Group 17/7A elements | Halogens |
| overall charge of atom | zero (neutral) |
| charge of the nucleus only | positive |
| another name for metalloids | semi-conductors |
| ability to reflect light | shiny |
| does not reflect light | dull |
| ability to attract electrons from another atom | electronegativity |
| most electronegative element in the representative groups | F |
| element with largest atomic size in the representative groups | Fr |
| Parts of periodic table that are NOT representative | Group 18 , d block , f block |
| elements that are liquids at room temperature | Hg , Br |
| block that Helium belongs to | s |
| The top row of the f block is in this period | 6th |
| The bottom row of the f block is in this period | 7th |
| The most electronegative group/family | Halogens |
| electrons closest to the nucleus of an atom | core |
| electrons furthest away from the nucleus of an atom | valence |