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The atomic number is the number of protons in the nucleus. Neutral atoms contain the same number of electrons as protons to balance the electrostatic charge.
The number of electrons on an atom will determine its charge, loss of electron(s) will make it positive, gain will make it negative. This occurs when atoms form ions.
Wiki User
∙ 11y ago
Wiki User
∙ 11y agoIt is represented by the Table of Elements
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Ordinary matter is made up of protons, neutrons, and electrons and is composed of atoms. An atom consists of a tiny nucleus made up of protons and neutrons, on the order of 20,000 times smaller than the size of the atom. The outer part of the atom consists of a number of electrons equal to the number of protons, making the normal atom electrically neutral.
A chemical element consists of those atoms with a specific number of protons in the nucleus; this number is called the atomic number. The atoms of an element may differ in the number of neutrons; atoms with different neutron numbers are said to be different isotopes of the element.
Elements are represented by a chemical symbol, with the atomic number and mass number sometimes affixed as indicated below. The mass number is the sum of the numbers of neutrons and protons in the nucleus.
Wiki User
∙ 11y agoAn atom is the smallest representative particle of an element that still has the properties and identity of that element.
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Chemical formulas represent the number and element of each type of atom in?
Chemical formulas represent the number and element of each type of atom in a molecule.
Does argon represent a molecule or an atom?
Like all the inert gases it is in atomic form. No molecules like Ar2 are possible. Atom
What does the Mass number in chemistry represent?
the atomic mass incdicated the amount of protons and neutrons of the atom
What scaled-up do scientists use to represent atom?
scaled up models
What do the subscript numbers represent in a chemical formula?
They tell you how often an atom - or a group of atoms - are repeated.
Chemical formulas represent the number and element of each type of atom in?
Chemical formulas represent the number and element of each type of atom in a molecule.
What are letters used to represent an atom?
A symbol.
What does an atomic number represent in an atom?
the elementprotons in the nucleuselectrons in the electron cloud of a neutral atom
In Thomas plum pudding model of the atom the plugs represent?
The plugs represent the electrons.
What does the number of protons represent?
positive charge in the atom
In Thomson and plum-pudding model of the atom the plums represent?
The plums represent negative electrons
What does atomic mass represent of an element represent?
Atomic Mass represents the mass of atom. We use mass of protons and neutrons.
Why does not an atom of an element represent the actual mass of its atom?
The atomic mass of an element is measured not in the mass of the atom, but in the number of grams per mole.
How many moles of aluminum do 6.3x1024 aluminum atom represent?
456
What kind of levels represent the area surrounding the center of an atom?
Energy
Is it true that an atom is made up of two or more chemicals?
No, an atom may only represent one element. It is pure.
Does argon represent a molecule or an atom?
Like all the inert gases it is in atomic form. No molecules like Ar2 are possible. Atom
