An element has atomic number 29. it belongs to `x` period any `y` group. Given value of `2x +y`:

Explanation

To solve the question, we need to determine the period (x) and group (y) of the element with atomic number 29, which is copper (Cu). We will then calculate the value of \(2x + y\).

### Step-by-step Solution:

1. **Identify the Element**:
The atomic number given is 29. This corresponds to the element copper (Cu).

2. **Determine the Electronic Configuration**:
The electronic configuration of copper (Cu) can be written as:
\[ \text{Cu: } 1s^2 2s^2 2p^6 3s^2 3p^6 3d^{10} 4s^1 \]
Alternatively, it can be simplified to:
\[ \text{Cu: } [\text{Ar}] 3d^{10} 4s^1 \]
where [Ar] represents the electron configuration of argon.

3. **Determine the Period (x)**:
The period number corresponds to the highest principal quantum number (n) in the electronic configuration. In this case, the highest n is 4 (from the 4s orbital). Therefore, the period number \(x\) is:
\[ x = 4 \]

4. **Determine the Group (y)**:
To find the group number for transition metals, we can use the formula:
\[ \text{Group number} = \text{(number of } n d \text{ electrons)} + \text{(number of } n-1 s \text{ electrons)} \]
For copper:
- The number of \(3d\) electrons (n d electrons) = 10
- The number of \(4s\) electrons (n-1 s electrons) = 1
Thus, the group number \(y\) is:
\[ y = 10 + 1 = 11 \]

5. **Calculate \(2x + y\)**:
Now that we have \(x = 4\) and \(y = 11\), we can calculate:
\[ 2x + y = 2(4) + 11 = 8 + 11 = 19 \]

### Final Answer:
The value of \(2x + y\) is **19**.