Notifications
Clear all
Classification of Elements and Periodicity in Properties
1
Posts
2
Users
0
Likes
338
Views
0
23/08/2021 3:32 pm
Topic starter
An element of atomic weight 40 has 2, 8, 8, 2 as the electronic configuration. Which one of the following statements regarding this element is not correct?
(a) it belongs to II group of the periodic table
(b) it has 20 neutrons
(c) the formula of its oxide is MO2
(d) it belongs to 4th period of the periodic table
1 Answer
0
23/08/2021 3:34 pm
Correct answer: (c) the formula of its oxide is MO2
Explanation:
Its valency is 2. So it will form MO type compound.