1.write the electronic configuration of second elements of group 15th of the period table.
2.which is the lightest elements.
- Which is the lightest metal.
- An element has the outer electronic configuration 4s,4p writes it's group no,& period no.
- Write the electronic configuration of the crumium
Here are the answers to your questions related to the elements of the periodic table:
1. Electronic Configuration of the Second Element of Group 15
The second element of Group 15 is Phosphorus (P). Its electronic configuration is:
- 1s² 2s² 2p⁶ 3s² 3p³
2. Which is the Lightest Element?
The lightest element in Group 15 is Nitrogen (N). It has an atomic number of 7 and is a non-metal.
3. Which is the Lightest Metal?
The lightest metal in Group 15 is Gallium (Ga). Although it is not the lightest element overall, it is the lightest metal in this group, with an atomic number of 31.
4. An Element with the Outer Electronic Configuration 4s² 4p⁴
An element with the outer electronic configuration of 4s² 4p⁴ corresponds to Selenium (Se).
- Group Number: 16 (Group VI A)
- Period Number: 4
5. Write the Electronic Configuration of Chromium
The electronic configuration of Chromium (Cr), which has an atomic number of 24, is:
- 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 3d⁵
Alternatively, it can also be expressed in noble gas notation as:
- [Ar] 4s¹ 3d⁵
This configuration reflects Chromium's unique stability due to half-filled d-subshell.
If you have any more questions or need further clarification, feel free to ask!