In the modern periodic table, sodium (atomic number: 11) is surrounded by elements with atomic numbers 3, 12, and 19 respectively. Which of these elements have physical and chemical properties resembling sodium?

Open in App

Solution

Elements having the same number of valence electrons possess similar chemical and physical properties. The electronic configuration of sodium is 2, 8, 1.
The electronic configuration of other elements is:

Atomic Number Electronic Configuration

3 2, 1

12 2, 8, 2

19 2, 8, 8, 1

Elements having atomic numbers 3 and 19 will show properties resembling to sodium because they have the same number of valence electrons.

Suggest Corrections

Similar questions

In the modern periodic table sodium element(atomic number 11) is surrounded by elements with atomic number 3 , 12 and 19 respectively. Which of these have physical and chemical properties resembling sodium?

Q. In the modern periodic table, calcium (atomic number 20) is surrounded by elements with atomic numbers 12, 19, 21, and 38. Which of these have physical and chemical properties resembling calcium?

Q. In the modern periodic table, magnesium is surrounded by elements with atomic number 4, 11, 13 and 20. Identify the elements. Which of these have chemical properties resembling magnesium?

in the modrn periodic table, the element calcium (atomic number=20) is surrounded by elements with atomic numbers 12, 19, 21 and 38.

which of these have physical and chemical properties similar to that of calcium.

Q.

Q. In the modern periodic table, calcium (atomic number = 20) is surrounded by elements with atomic numbers 12, 19, 21 and 38. Which of these have physical and chemical properties resembling calcium? Explain configuration of 38. From which point this type of configuration starts ? What is the maximum no. of electrons a shell can acquire at this point?

Join BYJU'S Learning Program

Atomic Number	Electronic Configuration
3	2, 1
12	2, 8, 2
19	2, 8, 8, 1