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Chapter 17 science
| Question | Answer |
|---|---|
| Chemical symbol surrounded by dots that represent the number of outermost electrons | electron dot notation |
| It can be hammered | malleable |
| It can be drawn into wires | ductile |
| Positively charged metallic ions are surrounded by a sea of electrons | metallic bonding |
| Element when the nucleus breaks down and gives off particles and energy | radioactive elements |
| two rows that seem disconnected from the rest of the periodic table | inner transition metals |
| Elements that are usually gasses or solids at room temperature | non metals |
| elements that have properties of metals and non metals | metalloids |
| molecule that contains 2 atoms of itself | diatomic elements |
| elements that are shiny, malleable, ductile, and good conductors or heat and electricity | metals |
| They can conduct electricity under certain conditions | semi conductor |
| elements created in the lab | synthetic elements |
| elements with more then 92 protons | transuranium elements |
| electrons in the outer most energy level | valence electron |
| types of elements and location | Alkali metals -1 Alkaline earth metals-2 Transition metals-3-13 Basic metals- 13, 14, 15 Semi metals- 13, 14, 15, 16 Non metals- 1, 14, 15, 16 Hallogens- 17 Nobel gasses- 18 Lanthanides- 3 Actinides- 3 |
| What is the highest number you have in electron dot notation | 8 |
| How do metals bond with non metals | metals lose electrons to the non-metals and become ions; the ions attract to each other |
| how does metallic bonding work | ions are layers in a sea of electrons and they can move around |
| why are metals good conductors | the outer level electrons are weakly help and can somewhat move |
| Besides the general characteristics of a metals, what are alkali metals like | soft and very reactive |
| 5 characteristic of alkaline earth metals | shiny, malleable, ductile, good conductor, reactive |
| why are they called transition metals | they are a transition between the main group elements (1-2+13-18) |
| Why is it called the lanthanide elements | It follows the element lanthanum |
| Why is it called the actinide series | they follow the element actinium |
| 3 things about the actinide series | radioactive, unstable, rare in nature |
| 5 characteristics of non metals | brittle, powdery, not good conductors, not ductile, not malleable, dull |
| how do non metals bond with non metals | they form covalent bonds with each other by sharing electrons |
| who are diatomic elements | molecules that contain 2 atoms of itself |
| what do all noble gasses have in common | the outer energy level is full |
| 3 characteristics of metalloids | they form ionic and covalent bonds. they can conduct electricity better then non-metals but not as good as metals |
| why should we make synthetic elements | they are radioactive |
| what are 2 characteristics of transuranium elements | synthetic and radioactive |
| What is the atomic trend as you go across the periods? What is the atomic trend as you go down the groups? | gets bigger across and when you go down |
Created by:
alichapman
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