Question

What is an Atom ? Name 3 types of Atom.​

Answer 1

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ANSWER :-

☞ An atom is a particle of matter that uniquely defines achemical element.

☞ An atom consists of a central nucleus that is usually surrounded by one or more electrons.

☞ It is also the smallest part into which an element can be divided.

The three types of atoms are :-

1. Electron :- The electron is a subatomic particle, symbol e⁻ or β⁻ , whose electric charge is negative one elementary charge. 
2. Proton :- A proton is a subatomic particle, symbol p or p⁺ , with a positive electric charge of +1e elementary charge and a mass slightly less than that of a neutron.
3. Neutron :- A neutron is a sub-atomic particle with no net electrostatic charge, with a very similar mass to a proton.

Answer 2

Answer:

An atom is the smallest unit of ordinary matter that forms a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are extremely small, typically around 100 picometers

The 3 types of Atom are:

1) Stable

Most atoms are stable. Their protons, neutrons and electrons balance. Barring outside forces, a stable atom will stay the same indefinitely.

2) Radioactive

Some atoms have too many neutrons in the nucleus, which makes them unstable. They’re radioactive, giving off particles until they become stable.

3) Ions

Atoms with extra or missing electrons are called ions. They have a positive or negative electric charge and are responsible for many chemical reactions.