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Topic 2: The Periodic Table


12. Trends in Atomic size of the elements: Recalling concept facts and definitions

1. As the elements in Group 1 are considered in order from top to bottom, the atomic radius of each
successive element generally
1) Increases 2) Decreases 3) Remains the same

2. As the elements in Group 17 of the Periodic Table are considered in order of increasing atomic
number, the atomic size of each successive element generally
1) Increases 2) Decreases 3) ) Remains the same

3. When the elements in Group 13 are considered in order of decreasing atomic number, the size of
each successive element 2) Decreases 3) Remains the same
1) Increases


4. As the elements in Period 2 are considered in order from left to right, the atomic radius of each
successive element generally
1) Increases 2) Decreases 3) Remains the same

5. As the elements in Period 4 of the Periodic Table are considered in order of increasing atomic
number, the atomic size of each successive element generally
1) Remains the same 2) Increases 3) Decreases

6. When the elements within a period on the Periodic Table are considered in order of decreasing
atomic number, the size of each successive element
1) Decreases 2) Increases 3) Remains the same

7. When the elements are considered from right to left of Period 2 the atomic radius of the
successive element generally will
1) Increase 2) Decrease 3) Remain the same Need Help? Study Book Pg 42 Set 19, Also use the Periodic Table

8. As the elements in Group 1 of the Periodic Table are considered in order of increasing atomic
number, the atomic radius of each successive element increases. This is primarily due to an increase
in the number of
1) Neutrons in the nucleus 3) Valence electrons

2) Unpaired electrons 4) Electrons shells


9. As the elements in a given group are considered in order from bottom to top, the atomic size of
each successive element decreases. This decrease is mostly due to a decrease in

3) The number of occupied energy levels
1) Atomic number


2) Mass number 4) The number of protons occupying the nucleus

10. As the elements in Period 3 of the Periodic Table are considered in order of increasing atomic
number, the atomic radius of each successive element decreases. This is primarily due to an
increase in the number of 3) Valence electrons
1) Nuclear charge
2) Electron shells 4) Kernel electrons


11. When the elements are considered in order of decreasing atomic number across any given Period of
the Periodic Table, the size of each successive atom increases. This increase is primarily due to
1) Increase in occupied electron shells 3) Increase in nuclear charge
4) Decrease in nuclear charge
2) Decrease in occupied electron shells




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