3 how many energy levels does each atom, shown in the table below, have?\nelements what row of the periodic…
3 how many energy levels does each atom, shown in the table below, have?\nelements what row of the periodic table is this element on? number of energy levels\naluminum\nsilicon\nberyllium\n4 how many valence electrons does each atom, shown in the table below, have?\nelements what column of the periodic table is this element in? valence electrons\naluminum\nsilicon\nberyllium
Answer
Explanation:
Step1: Locate Aluminum in periodic table
Aluminum is in the 3rd row. So it has 3 energy - levels. It is in the 13th column (Group 13), so it has 3 valence electrons.
Step2: Locate Silicon in periodic table
Silicon is in the 3rd row. So it has 3 energy - levels. It is in the 14th column (Group 14), so it has 4 valence electrons.
Step3: Locate Beryllium in periodic table
Beryllium is in the 2nd row. So it has 2 energy - levels. It is in the 2nd column (Group 2), so it has 2 valence electrons.
Answer:
| Elements | What row of the periodic table is this element on? | Number of Energy Levels | What column of the periodic table is this element in? | Valence Electrons |
|---|---|---|---|---|
| Aluminum | 3 | 3 | 13 | 3 |
| Silicon | 3 | 3 | 14 | 4 |
| Beryllium | 2 | 2 | 2 | 2 |