Home
Class 12
CHEMISTRY
In modern periodic table, the position o...

In modern periodic table, the position of the element with atomic number '84' is

A

a. 6th group, 6th period

B

b. IVA group, 6th period

C

c. 16th group, 6th period

D

d. VIA group, 5th period

Text Solution

AI Generated Solution

The correct Answer is:
To determine the position of the element with atomic number 84 in the modern periodic table, we can follow these steps: ### Step 1: Identify the Element The element with atomic number 84 is Polonium (Po). ### Step 2: Locate the Noble Gases We need to know the positions of the noble gases in the periodic table to help us find the group and period of Polonium. The noble gases and their atomic numbers are: - Helium (He) - 2 - Neon (Ne) - 10 - Argon (Ar) - 18 - Krypton (Kr) - 36 - Xenon (Xe) - 54 - Radon (Rn) - 86 ### Step 3: Determine the Group Since Radon (Rn) has an atomic number of 86 and is in group 18, we can find the group for Polonium (atomic number 84) by counting backwards. - Radon (86) - Group 18 - Polonium (84) is two atomic numbers before Radon, which means it is in Group 16. ### Step 4: Determine the Period Next, we need to determine the period. The noble gas Xenon (Xe) is in period 5, and Radon (Rn) is in period 6. Since Polonium is located before Radon in the same period, it will also be in period 6. ### Final Conclusion Thus, the position of the element with atomic number 84 (Polonium) in the modern periodic table is: - Group: 16 - Period: 6 Therefore, the answer is: **Polonium (Po) is in Group 16 and Period 6.**
Promotional Banner

Similar Questions

Explore conceptually related problems

In the modern periodic table, the place of the element with atomic number 31 is in:

In modern periodic table, the element with atomic number Z = 118 will be:

Find the position of element with atomic number 35 in the periodic table

In the modern periodic table, elements are arranged in order of increasing atomic numbers, which is related to the electornic configuration. Depending upon the type of orbitals receiving the last electron, the elements in the periodic table have been divided into four blocks, s, p,d and f. The modern periodic table consists of 7 periods and 18 groups. Each period begins with the filling of a new energy shell. in accordance with the Aufbau principal, the seven periods (1 to 7) have 2,8,8,18,18,32 and 32 elements respectively. The seventh period is still incomplete. To avoid the periodic table being too long, the two series of f-block elements, called lanthanoids and actinoids, are placed at the bottom of the main body of the periodic table Which of the element whose atomic numbers are given below, cannot be accommodated in the present set up of the long form of the periodic table ?

The tenth element in the periodic table resembles the elements with atomic number

In the long or modern form of the periodic table, the element in the periodic table have been divided into four blocks, s-p-d -and f -. Each period begins with the filling of new energy shell. Two series of f -block elements are placed at the bottom of the periodic table. Which of the element whose atomic numbers are given below cannot be accommodated in the present set-up of the modern periodic table?

In the modern periodic table, the period indicates the value of (a) atomic number (b) atomic mass (c) principal quantum number (d) azimuthal quantum number.

In the periodic table, the element with atomic number 16 will be placed in the group

In the periodic table, the element with atomic number 12 will be placed in the group

The group in the modern periode table, in which all the elements do not have same number of electrons in their valence shell is :