An element which is an essential constituent of all organic compounds belongs to

Options

A. group 1
B. group 14
C. group 15
D. group 16

Explanation

To solve the question, "An element which is an essential constituent of all organic compounds belongs to," we can follow these steps:

### Step 1: Identify the Essential Element
The question asks for an element that is essential to all organic compounds. The most well-known element that fits this description is carbon.

**Hint:** Think about the basic building blocks of organic chemistry.

### Step 2: Determine the Symbol of the Element
The chemical symbol for carbon is "C."

**Hint:** Recall the symbols of common elements in chemistry.

### Step 3: Find the Group Number of Carbon
In the periodic table, carbon is located in Group 14.

**Hint:** Look at the periodic table to find where carbon is positioned.

### Step 4: Identify the Atomic Number of Carbon
The atomic number of carbon is 6, which indicates the number of protons in its nucleus.

**Hint:** Remember that the atomic number corresponds to the number of protons in an atom.

### Step 5: Write the Electron Configuration
The electron configuration of carbon is 1s² 2s² 2p², which can also be simplified to 2, 4, indicating the distribution of electrons in the shells.

**Hint:** Consider how electrons are arranged in shells around the nucleus.

### Step 6: Conclude the Answer
Based on the information gathered, we conclude that the element essential to all organic compounds, which is carbon, belongs to Group 14 of the periodic table.

**Hint:** Summarize your findings to confirm the group number of the element.

### Final Answer
The correct answer is: **Group 14** (Option 2).