Periodic Table Of Elements Test: Quiz!
15 Questions
| Total Attempts: 200
.
Questions and Answers
- 1.A Russian chemist who discovered a pattern in elements. wrote properties on cards and arranged them in order from increasing atomic mass.
- A.
Demitri Mendeleev
- B.
Henry Moseley
- C.
Dalton
- D.
Democratus
- 2.Means happening at regular intervals elemental properties repeat every___
- A.
5
- B.
6
- C.
7
- D.
8
- 3.Elements are classified in one of 3 categories depending on their properties.
- A.
True
- B.
False
- 4.Most elements. left of the zig-zag line. few electrons in the outer level. most are solid at room temperature. properties: shiny, malleable, electrically conductive, thermally conductive.
- A.
Non metals
- B.
Metals
- C.
Metalloids
- D.
Transition metals
- 5.Henry Moseley was a British scientist who determined the number of protons in an each element.
- A.
True
- B.
False
- 6.A bond that forms when electrons are transferred from one atom to another, which results in a positive ion and a negative ion.
- A.
Ionic
- B.
Convalent
- C.
Metallic
- D.
Transition
- 7.a bond formed when atoms share one or more electrons.
- A.
Ionic
- B.
Convalent
- C.
Metallic
- D.
Transition
- 8.The bond formed by the attraction between positively charged metal ions around them.
- A.
Ionic
- B.
Convalent
- C.
Metallic
- D.
Transition
- 9.Alkali metals are the most reactive metals because atoms give up their only outer electron easily. only found in nature combined with other elements. Properties: soft, the color of silver, shiny, low density.
- A.
True
- B.
False
- 10.alkaline metals are more reactive because they have two outer electrons that are shared easily. Properties: the color of silver, a higher density of than alkali metals.
- A.
True
- B.
False
- 11.Transition metals are less reactive then groups 1-2 because they don't share electrons easily. Properties vary widely: shiny, conductor of electrical and thermal currents higher density and melting point than group 1-2.
- A.
True
- B.
False
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