Question

Порівняйте будову атомів елементів літію та нітрогену який з них виявляє металічні властивості чому

Answer 1

Comparing the Atomic Structure of Lithium and Nitrogen

Lithium and nitrogen are two different elements with distinct atomic structures. Let's compare their atomic structures and determine which one exhibits metallic properties.

Atomic Structure of Lithium: - Lithium has an atomic number of 3 and an atomic mass of approximately 6.94 u. - It belongs to group 1 and period 2 of the periodic table. - The electron configuration of lithium is 1s² 2s¹. - Lithium has 3 protons, 3 electrons, and 4 neutrons in its most abundant isotope, lithium-7.

Atomic Structure of Nitrogen: - Nitrogen has an atomic number of 7 and an atomic mass of approximately 14.01 u. - It belongs to group 15 and period 2 of the periodic table. - The electron configuration of nitrogen is 1s² 2s² 2p³. - Nitrogen has 7 protons, 7 electrons, and 7 neutrons in its most abundant isotope, nitrogen-14.

Metallic Properties: - Lithium exhibits metallic properties due to its position in the periodic table. As a group 1 element, it has a single valence electron that can be easily lost, leading to the formation of cations and the characteristic properties of metals such as conductivity and malleability.

- Nitrogen, on the other hand, is a nonmetal. It has a half-filled p orbital and tends to gain electrons to achieve a stable electron configuration, exhibiting nonmetallic properties such as being a poor conductor of electricity and having a brittle structure.

In summary, lithium exhibits metallic properties due to its position in the periodic table and the ease with which it can lose its valence electron, while nitrogen exhibits nonmetallic properties due to its tendency to gain electrons to achieve stability.