JEE Main Chemistry question
What is the atomic number of the element placed in period 3 and group 2 of the modern periodic table?
Answer: 12
Solution
The period-3, group-2 element is magnesium, whose atomic number is 12.
What is the atomic number of the element placed in period 3 and group 2 of the modern periodic table?
The period-3, group-2 element is magnesium, whose atomic number is 12.