Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
CHEM TEST
unit 2
| Question | Answer |
|---|---|
| What trend in Atomic Radius do you see as you go down a group/family on the periodic table? | Increase |
| What trend in Atomic Radius do you see as you go across a period/row on the periodic table? | Decrease |
| Define Electronegativity | The degree to which an element tends to gain electrons and form negative ions in chemical reactions. |
| What trend in Electronegativity do you see as you go down a group/family on the periodic table? | Decrease |
| What trend in Electronegativity do you see as you go across a period/row on the periodic table? | Increases |
| Define Ionization | The process by which an atom or molecule gains or loses electrons, acquiring an electrical charge and becoming an ion. |
| What trend in Ionization do you see as you go down a group/family on the periodic table? | Decreases |
| What trend in Ionization do you see as you go across a period/row on the periodic table? | Increase |
| Based on the concept of periodic trends, answer the following questions for these atoms: Li, Be,Mg,Na A. Which element has the lowest electronegativity? B. Which element has the lowest ionization energy? C. Which element has the largest atom? | A. Sodium (Na) has the lowest electronegativity because it is in Group 1 and is furthest to the left on the periodic table. B. (Na) also has the lowest ionization energy its position in Group 1 and easy removal of its outer electron C. (Na) |
| Based on the concept of periodic trends, answer the following questions for these atoms: P, S, Cl, F A. Which element has the lowest electronegativity? B. Which element has the lowest ionization energy? C. Which element has the largest atom? | A. Phosphorus (P) has the lowest electronegativity among the given elements. B. Phosphorus (P) has the lowest ionization energy. C. Phosphorus (P) has the largest atomic radius, meaning it is the largest atom among the given elements. |
| Reactivity | The impulse for which a chemical substance undergoes a chemical reaction, either by itself or with other materials, with an overall release of energy. |
| Shielding | The way the inner-shell electrons of an atom block or repel the outer-shell electrons, reducing the attractive force of the nucleus on those outer electrons |
| Coulombs Law | Coulomb's Law, which shows that the attractive force between the nucleus and the valence electrons decreases significantly as the distance between them increases. |
| Effective Nuclear Charge | The net positive charge that valence electrons feel from the nucleus |
| Reactivity dif | Non-metals react more when its easier to gain electrons. Metal react more when its easier to lose the electrons |
| group changes the outside ring for chemicals | atomic number is how many protons |
Created by:
user-1986868
Popular Chemistry sets