![1:19 understand how to deduce the electronic configurations of the first 20 elements from their positions in the Periodic Table - TutorMyself Chemistry 1:19 understand how to deduce the electronic configurations of the first 20 elements from their positions in the Periodic Table - TutorMyself Chemistry](https://www.tutormyself.com/wp-content/uploads/img_566c9f610c5af.png)
1:19 understand how to deduce the electronic configurations of the first 20 elements from their positions in the Periodic Table - TutorMyself Chemistry
![SOLVED: 'These are the first 20 elements on the periodic table which of these elements had 20 protons in its nucleus (atomic number = 12)? 1. He 2. S 3. Mg 4. SOLVED: 'These are the first 20 elements on the periodic table which of these elements had 20 protons in its nucleus (atomic number = 12)? 1. He 2. S 3. Mg 4.](https://cdn.numerade.com/ask_images/81f8d38ddfeb413a95517912c52a59ca.jpg)
SOLVED: 'These are the first 20 elements on the periodic table which of these elements had 20 protons in its nucleus (atomic number = 12)? 1. He 2. S 3. Mg 4.
![Tricks to Remember The First 20 Elements Of Periodic Table! #Tricks # PeriodicTable #Fun #FunToLearn #ISBMUnive… | Chemistry lessons, Biology facts, Chemistry basics Tricks to Remember The First 20 Elements Of Periodic Table! #Tricks # PeriodicTable #Fun #FunToLearn #ISBMUnive… | Chemistry lessons, Biology facts, Chemistry basics](https://i.pinimg.com/originals/f9/8d/d8/f98dd8a0f3939040ba3b0942d82bd6b0.jpg)