Which of the following elements has the electronic configuration [Ne] 3s2?
Practice Questions
1 question
Q1
Which of the following elements has the electronic configuration [Ne] 3s2?
Mg
Na
Al
Si
Magnesium (Mg) has 12 electrons, and its electronic configuration is [Ne] 3s2.
Questions & Step-by-step Solutions
1 item
Q
Q: Which of the following elements has the electronic configuration [Ne] 3s2?
Solution: Magnesium (Mg) has 12 electrons, and its electronic configuration is [Ne] 3s2.
Steps: 4
Step 1: Understand that the electronic configuration [Ne] 3s2 means that the element has the same electron configuration as Neon (Ne) plus 2 additional electrons in the 3s orbital.
Step 2: Know that Neon (Ne) has 10 electrons, so we add 2 more electrons to get a total of 12 electrons.
Step 3: Identify the element with 12 electrons on the periodic table. This element is Magnesium (Mg).
Step 4: Confirm that the electronic configuration of Magnesium is indeed [Ne] 3s2.
