The first element of group 11 is copper (Cu) with atomic number 29. What will be the next element? 

Silver 

The correct answer is option 1. Silver.

Group 11 of the periodic table consists of transition metals, often referred to as the coinage metals due to their historical use in minting coins. The first element in Group 11 is copper (Cu), with an atomic number of 29. Following copper, the next element in Group 11 is silver (Ag), with an atomic number of 47. Here's a brief explanation of silver:

1. Atomic Structure: Silver is a transition metal with an atomic number of 47. It belongs to the d-block of the periodic table and is located in Group 11.

2. Properties:  Silver is known for its lustrous appearance and white metallic color. It is a relatively soft metal, which makes it suitable for use in jewelry, tableware, and decorative items. Silver also exhibits high thermal and electrical conductivity, making it useful in various electrical and electronic applications.

3. Uses:  Silver has been prized for its monetary value and used as currency for thousands of years. However, in modern times, its primary uses extend beyond currency to include jewelry, silverware, mirrors, and photographic film. Additionally, silver is used in various industrial applications, such as in electrical contacts, and batteries, and as a catalyst in chemical reactions.

4. Tarnish:  Silver is prone to tarnishing when exposed to air or certain chemicals, forming a dark layer of silver sulfide \((Ag_2S)\) on its surface. However, tarnish can be easily removed through polishing, restoring the metal's luster.

In summary, silver is the next element in Group 11 after copper. It possesses unique properties that have made it highly valued throughout history and continue to make it indispensable in numerous modern applications.