what is the structure of atom
Answers
Explanation:
Atoms consist of three basic particles: protons, electrons, and neutrons. The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain the electrons (negatively charged). Atoms have different properties based on the arrangement and number of their basic particles.
The hydrogen atom (H) contains only one proton, one electron, and no neutrons. This can be determined using the atomic number and the mass number of the element (see the concept on atomic numbers and mass numbers).
image
Structure of an atom: Elements, such as helium, depicted here, are made up of atoms. Atoms are made up of protons and neutrons located within the nucleus, with electrons in orbitals surrounding the nucleus.
Answer:
The structure of atom is spherical in shape and consists of the following sub atomic particles :
i) Nucleus :
It is the middle part of an atom which contains neutrons and protons . It is positevely charged and most of the mass of an atom is concentrated in the nucleus.
ii) Orbital shells
These are imaginary circular paths on which electrons revolve around the nucleus. Every shell has a definite capacity to hold number of electrons . The holding capacity or energy level increases as the number of shells increases and energy level of one shell is given by 2n^2 . Orbital shells contain electrons and outer most shell of and atom is called valence shell.
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