Use your periodic table to determine the number of valence electrons in the following elements.
1 | 3 | 5 | 7 | |
|---|---|---|---|---|
Nitrogen | ||||
Phospherous | ||||
Sodium (Na) | ||||
Chlorine |
Use your periodic table to determine the number of core electrons in the following elements.
0 | 2 | 8 | 10 | |
|---|---|---|---|---|
Nitrogen | ||||
Phospherous | ||||
Helium | ||||
Chlorine |
Match the following shell diagram to the correct atom.
| Stavka koja se može prevući | arrow_right_alt | Odgovarajuća stavka |
|---|---|---|
Berilium | arrow_right_alt |
|
Neon | arrow_right_alt |
|
Nitrogen | arrow_right_alt |
|
Aluminum | arrow_right_alt |
|
Match the following elements to the charge their ion would have
| Stavka koja se može prevući | arrow_right_alt | Odgovarajuća stavka |
|---|---|---|
N | arrow_right_alt | +1 |
Br | arrow_right_alt | +2 |
Mg | arrow_right_alt | -3 |
K | arrow_right_alt | -1 |
Why do ions form?
Atoms that lose electrons are ____________ and ____________.
Which of the following formulas are correct? (the numbers should be read as subscripts)
What is the proper formula for Magnesium hydroxide?
what is the charge of the following polyatomic ions?
| Stavka koja se može prevući | arrow_right_alt | Odgovarajuća stavka |
|---|---|---|
ammonium | arrow_right_alt | 2- |
hydroxide | arrow_right_alt | 3- |
phosphate | arrow_right_alt | 1+ |
Sulfate | arrow_right_alt | 1- |
