Question

what is the charge of ions formed from atoms of mg? what is the charge of ions formed from atoms of ca? mg: ca:

Explanation:

Step1: Recall electron - configuration of Mg

Magnesium (Mg) has an atomic number of 12. Its electron - configuration is 1s²2s²2p⁶3s². It loses 2 valence electrons to achieve a stable noble - gas configuration.

Step2: Determine Mg ion charge

When it loses 2 electrons, it forms a cation with a charge of + 2.

Step3: Recall electron - configuration of Ca

Calcium (Ca) has an atomic number of 20. Its electron - configuration is 1s²2s²2p⁶3s²3p⁶4s². It loses 2 valence electrons to achieve a stable noble - gas configuration.

Step4: Determine Ca ion charge

When it loses 2 electrons, it forms a cation with a charge of + 2.

Answer:

Mg: + 2
Ca: + 2