Which element exhibits highest density in 3d series

Options

A. Sc
B. Cr
C. Zn
D. Cu

Explanation

To determine which element exhibits the highest density in the 3d series of transition metals, we can follow these steps:

### Step 1: Identify the 3d Series Elements
The 3d series consists of the following elements:
- Scandium (Sc, Atomic number 21)
- Titanium (Ti, Atomic number 22)
- Vanadium (V, Atomic number 23)
- Chromium (Cr, Atomic number 24)
- Manganese (Mn, Atomic number 25)
- Iron (Fe, Atomic number 26)
- Cobalt (Co, Atomic number 27)
- Nickel (Ni, Atomic number 28)
- Copper (Cu, Atomic number 29)
- Zinc (Zn, Atomic number 30)

### Step 2: Gather Density Data
Next, we need to find the density values for these elements. The relevant densities are:
- Scandium: 2.98 g/cm³
- Titanium: 4.51 g/cm³
- Vanadium: 6.11 g/cm³
- Chromium: 7.19 g/cm³
- Manganese: 7.43 g/cm³
- Iron: 7.87 g/cm³
- Cobalt: 8.90 g/cm³
- Nickel: 8.90 g/cm³
- Copper: 8.96 g/cm³
- Zinc: 7.14 g/cm³

### Step 3: Compare Densities
Now, we compare the densities of all the elements in the 3d series:
- Scandium: 2.98 g/cm³
- Titanium: 4.51 g/cm³
- Vanadium: 6.11 g/cm³
- Chromium: 7.19 g/cm³
- Manganese: 7.43 g/cm³
- Iron: 7.87 g/cm³
- Cobalt: 8.90 g/cm³
- Nickel: 8.90 g/cm³
- Copper: 8.96 g/cm³
- Zinc: 7.14 g/cm³

### Step 4: Identify the Highest Density
From the list, we can see that Copper (Cu) has the highest density at 8.96 g/cm³.

### Conclusion
Thus, the element that exhibits the highest density in the 3d series is **Copper (Cu)**.

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