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Maggie Warren
Chemistry Study Guide chapter 5
Question | Answer |
---|---|
Mendeleev noticed that properties of elements usually repeated at regular intervals when the elements were arranged in order of increasing? | Atomic mass |
The discovery of noble gases changed Mendeleev's periodic table by adding a new? | Group |
What are the elements with atomic numbers from 58 to 71 in periodic table called? | The lanthinide elements |
To which group do lithium and potassium belong? | Alkali metals |
Elements in group or column in the periodic table represented? | undiscovered elements |
Argon, krypton, and xenon are? | Noble gases |
To which group do Flourine and Chlorine belong? | Halogens |
A horizontal row of blocks in periodic table is called a(n0? | Period |
The person whose work led to a periodic table based on incresing atomic number was? | Moseley |
The elmetns that border the zigzag line in the periodic table are? | Metalliods |