Element Property Trends

2. An electron is ___ to an atom during the process described by the definition of electron affinity.
5. Nonmetals tend to have ___ melting points.
7. Ionization energy tends to decrease as atomic radius increases because of ___.
13. Nonmetals tend to form ___ ions.
15. Metals tend to be ___ and ductile.
17. The units of electronegativity are ___.
18. Negative ions are aka ___.
19. Atoms and molecules are ___ in chemistry.
22. When ___ energy is added to an atom, a positive ion is the result.
23. 6.022x10e23 is the number of fundamental units in 1 ___.

1. The negative values for electron affinity mean that energy is ___ from the atom during the process of adding an electron.
3. Shield Effect explains why these electrons do not experience the full attraction of the nucleus.
4. Nonmetallic characteristics tend to increase as you travel to the ___ across the periodic table.
6. A high electronegativity or ___ value tells you an element has a stronger attraction for electrons.
8. The units of ionization energy are ___.
9. ___ tends to increase down the periodic table.
10. The units of atomic radius are ___.
11. This is used to help predict the kind of bond two elements will form.
12. Positive ions are aka ___.
14. Joules are units of ___.
16. Metallic characteristics tend to increase as you travel ___ the periodic table.
20. Metals tend to form ___ ions.
21. Nonmetals tend to be ___ conductors.