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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. They are so small that accurately predicting their behaviour using classical physics—as if they were tennis balls.
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the basic unit of a chemical element.
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If an atom has 16 protons that atom must be which element?
Sulfur, which atomic number (in the PS) is 16, by definition equal to the number of protons in the nucleus
What is the modern definition of an atom?
Atoms are particles with a small positive nucleus that is surrounded by clouds of electrons.
Does ethers contain oxygen?
By definition, ethers must contain at least one oxygen atom.
What element is used to make atomic clocks?
The atom of the isotope caesium 133; the definition of second in SI is based on this atom.
In an atom the number of proton equals the number of neutrons?
In a neutral atom, the number of protons equals the number of electrons; it may or may not also equal the number of neutrons.
Definition of bonded atom?
bonded atom
Is a drawing of an atom a scientific definition?
No, its an approximation.
Definition of aatomic mass?
not exact but the mass of an atom
Term for an atom that has the same atomic number as another atom but differs in atomic weight?
This is the definition of an "isotope".
Do many elements have the same type of atom?
By definition, an element is a substance with only one type of atom. So no, each element has its own type of atom.
Is an atom a element or a compound?
By definition, it will always be an element, never a compound.
What is the definition of monatomic?
Consisting of molecules each having one atom.
Elements are composed of what type of atoms?
A single type of atom. Which is the definition of an element
What is the definition of a radioisotpoe?
A radioisotope is an atom that has an unstable nucleus characterized by excess energy.
What is the atomic definition?
Atomicity is having atoms. Also the number of atoms in a molecule.
If an atom has 16 protons that atom must be which element?
Sulfur, which atomic number (in the PS) is 16, by definition equal to the number of protons in the nucleus
What is the definition of isortopes?
Isotopesare variants of atoms of a particular chemical element, which have differing numbers of neutrons. Atoms of a particular element by definition must contain the same number of protons but may have a distinct number of neutrons which differs from atom to atom, without changing the designation of the atom as a particular element.
