beryllium element name how many? _ p⁺ 3 n° 2 e⁻ how many stable isotopes of this element can you make? check…
beryllium element name how many? _ p⁺ 3 n° 2 e⁻ how many stable isotopes of this element can you make? check one: stable unstable
Answer
Explanation:
Step1: Recall atomic number property
The atomic number is equal to the number of protons. Beryllium has an atomic number of 4, so the number of protons ($p^{+}$) is 4.
Step2: Recall isotope knowledge
Beryllium has only one stable isotope, $^{9}$Be.
Answer:
4 $p^{+}$; One stable isotope (check the "Stable" box)