Periodic Trends

6. The electrons from the inner shell(s) of an atom or ion. These electrons often can provide shielding effect to weaken the nuclear attraction felt by the valence electrons (plural).
8. The rows of the periodic table are called________? (plural).
9. Elements on the far-right side of the periodic table are typically considered as_______? (plural).
10. Elements that can act as both metals and non-metals (plural).
12. A table of chemical elements arranged in specific order, from which we can predict properties and behaviours of those elements.
15. Elements from a same group in the periodic table would have the same number of ________?

1. The parameter that we can use to compare and contrast the size of the atoms.
2. Elements from a same period in the periodic table would have the same number of _________? (plural).
3. The net nuclear charge that the valence electrons actually experience after considering the shielding effect provided by the core electrons.
4. The relative attraction a nucleus in an atom to the bonding electrons. Typically measured based on the Pauling’s scale from 0.7‒4.0.
5. The reoccurring patterns observed in the periodic table, which can help us predict the characteristics of the elements (plural).
7. The parameter that we can use to compare and contrast the size of the ions.
11. The amount of energy required to remove an electron from a neutral atom in its gaseous state. Higher amount of this energy means harder to remove the electron(s) to form cations. Lower amount of this energy means easier to remove the electron(s) to form cations.
13. The columns of the periodic table are called________? (plural).
14. Elements on the far-left side of the periodic table are typically considered as _______? (plural).