Answer:
The charge of a Strontium atom that has 10 electrons is 4.48 × 10⁻¹⁸ C
Explanation:
The atomic number of Strontium is 38
The electronic configuration of Strontium is given as follows;
1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶5s²
The atomic number of Strontium is 38 electrons in orbit and 38 protons in its nucleus and is electronically neutral
38e⁻ + 38e⁺ = 0
When there are only 10 electrons in an atom of Strontium, we have;
10e⁻ + 38e⁺ = +28e
The charge of a Strontium atom that has 10 electrons is +28e
+28e = 28×1.6×10⁻¹⁹ C = 4.48 × 10⁻¹⁸ C
The charge of a Strontium atom that has 10 electrons is +28e or 4.48 × 10⁻¹⁸ C.
