Question

Строение атома кальция

Answer 1

1s2 2s2 2p6 3s2 3p6 4s2

Answer 2

Structure of Calcium Atom

The atomic structure of calcium (Ca) consists of a nucleus containing protons and neutrons, surrounded by electron shells. Here is a detailed breakdown of the structure:

1. Atomic Number and Symbol: Calcium has an atomic number of 20 and is represented by the symbol Ca. 2. Nucleus: The nucleus of a calcium atom contains protons and neutrons. The number of protons in the nucleus determines the atomic number, which is 20 for calcium. 3. Electron Configuration: The electron configuration of calcium is 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 This configuration indicates the distribution of electrons in different energy levels or shells around the nucleus. 4. Electron Shells: Calcium has four electron shells, labeled as K, L, M, and N shells. The K shell can hold a maximum of 2 electrons, the L shell can hold a maximum of 8 electrons, the M shell can hold a maximum of 8 electrons, and the N shell can hold a maximum of 2 electrons. 5. Valence Electrons: The valence electrons of calcium are located in the outermost shell, which is the 4s shell. Calcium has 2 valence electrons in the 4s shell.

In summary, the structure of a calcium atom consists of a nucleus containing protons and neutrons, surrounded by electron shells. The electron configuration of calcium is 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2, with 2 valence electrons in the 4s shell