Arrange the points in sequence to draw the geometrical representation of an atom which is resprecented as `_(Z)X^(A)`.
(a) Calculation of the number of protons and neutrons.
(b) Identification of the atomic number and mass number of the given element.
( c) Placement of the electrons in shells around the nucleus according to the electronic configuration.
(d) Wirting the electronc configuration of the atom.
(e) Protons and neutrons are shown in nuleus.

Options

A. baedc
B. bacde
C. abcde
D. ecbad

Explanation

To draw the geometrical representation of an atom represented as `_(Z)X^(A)`, we can follow these steps in sequence:

### Step-by-Step Solution:

1. **Identification of the Atomic Number and Mass Number (b)**:
- The atomic number (Z) is the number of protons in the nucleus of the atom.
- The mass number (A) is the total number of protons and neutrons in the nucleus.

2. **Calculation of the Number of Protons and Neutrons (a)**:
- The number of protons is equal to the atomic number (Z).
- The number of neutrons can be calculated using the formula:
\[ \text{Number of Neutrons} = A - Z \]

3. **Placement of the Electrons in Shells Around the Nucleus According to the Electronic Configuration (c)**:
- Electrons are placed in energy levels or shells around the nucleus based on the atomic number.
- The distribution of electrons follows the order of filling according to the Aufbau principle, Hund's rule, and the Pauli exclusion principle.

4. **Writing the Electronic Configuration of the Atom (d)**:
- The electronic configuration is a representation of the arrangement of electrons in the atom's shells.
- It is written in the form of subshells (s, p, d, f) and the number of electrons in each subshell.

5. **Protons and Neutrons are Shown in the Nucleus (e)**:
- Finally, represent the nucleus of the atom by showing the calculated number of protons and neutrons together.

### Summary of the Sequence:
- (b) Identify atomic number (Z) and mass number (A).
- (a) Calculate the number of protons (Z) and neutrons (A - Z).
- (c) Place electrons in shells according to electronic configuration.
- (d) Write the electronic configuration.
- (e) Show protons and neutrons in the nucleus.