Question

1/ what element does this orbital diagram represent? be b br 6. how many electrons does the element calcium have? 4 17 20 5. how many electrons can ans sub - orbital hold? 2 6 10

Explanation:

1. Analyze the orbital - diagram: The orbital - diagram shows 4 electrons. Beryllium (Be) has 4 electrons. Boron (B) has 5 electrons and bromine (Br) has 35 electrons.
2. Calcium (Ca) has an atomic number of 20. In a neutral atom, the number of electrons is equal to the atomic number. So calcium has 20 electrons.
3. An's' sub - orbital can hold a maximum of 2 electrons.

Answer:

1. Be
2. 20
3. 2