Question

Define Atom__________​

Answer 1

$\implies$

• 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 across.

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 across.

Components: Electrons and a compact nucleus of protons and neutrons

Components: Electrons and a compact nucleus of protons and neutronsElectric charge: zero (neutral), or ion charge

Components: Electrons and a compact nucleus of protons and neutronsElectric charge: zero (neutral), or ion chargeMass range: 1.67×10−27 to 4.52×10−25 kg

Components: Electrons and a compact nucleus of protons and neutronsElectric charge: zero (neutral), or ion chargeMass range: 1.67×10−27 to 4.52×10−25 kgDiameter range: 62 pm (He) to 520 pm (Cs) (data page)