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All atoms are different from one another when they have distinct numbers of protons in their nuclei, which defines their atomic number and, consequently, their identity as different chemical elements. For example, a hydrogen atom has one proton, while a helium atom has two protons. Additionally, atoms of the same element can vary in the number of neutrons, resulting in isotopes, but they remain the same element due to their identical proton count. Thus, the uniqueness of atoms is fundamentally rooted in their atomic structure.
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What two atoms are the isotopes of one another must have different number of what?
Neutrons.
Is it true that all the atoms of one pure substance are the same but are different from the atoms of another pure substance?
Yes, it is true that all the atoms of a pure substance are identical in terms of the number of protons, electrons, and neutrons, which defines the element. However, atoms of different pure substances are distinct from each other in their atomic structure and properties, such as the number of protons, which determines the type of element. For example, all oxygen atoms are the same, but they differ from all carbon atoms. This fundamental difference is what gives each element its unique characteristics.
Are all sample of elements are composed of atoms with same atomic mass?
No, different samples of an element can have varying atomic masses due to the presence of isotopes. Isotopes are atoms of the same element with different numbers of neutrons, leading to different atomic masses.
What are the main ideas of Dalton theory?
The ancient Greek philosophers had talked about atoms, but Dalton's theory was different in that it had the weight of careful chemical measurements behind it. It wasn't just a philosophical statement that there are atoms because there must be atoms. His atomic theory had these fundamental points :Elements consist of tiny particles called atoms.Elements are pure because all atoms of an element are identical and that in particular they have the same mass.Elements differ from one another because atoms of each element are different from one another; in particular, they have different masses.Compounds consist of atoms of different elements combined together. Compounds are pure substances (remember they cannot be separated into elements by phase changes) because the atoms of the different elements are bonded to one another somehow, perhaps by hooks, and are not easily separated from one another.Compounds have constant composition because they contain a fixed ratio of atoms and each atom has its own characteristic weight, thus fixing the weight ratio of one element to the other.Chemical reactions involved the rearrangement of combinations of the atoms in a substance.Dalton's Atomic Theory had several main points, which are variously grouped into five statements :1) All matter is made of atoms.2) Atoms of a given element are identical in size, mass and chemical properties.3) Atoms of different elements have different masses and properties.4) Compounds are formed by a combination of two or more different kinds of atoms. The elements combine in simple, whole-number ratios.5) Atoms cannot be subdivided, created, or destroyed, but merely rearranged in their compounds with other elements. They can be combined, separated, or changed in the way in which they are arranged.
what are the 4 points in Dalton's atomic theory?
daltons atomic postulations stated that: * Elements are made of tiny particles called atoms. * All atoms of a given element are identical. * The atoms of a given element are different from those of any other element; the atoms of different elements can be distinguished from one another by their respective relative weights. * Atoms of one element can combine with atoms of other elements to form chemical compounds; a given compound always has the same relative numbers of types of atoms. * Atoms cannot be created, divided into smaller particles, nor destroyed in the chemical process; a chemical reaction simply changes the way atoms are grouped together.
Are all atoms identical?
No, all Atoms are totally different from one another.
Are the atoms the same or different in hydrogen?
All hydrogen atoms are the same but they are different from the atoms of other elements.
What is the basic building block of all the compounds?
The basic building block of all compounds is atoms. Compounds contain atoms of at least two different elements bonded to one another. Thus, atoms of elements are what form compounds.
What is it called when atoms of different elements bond to one another?
Fusion
What two atoms are the isotopes of one another must have different number of what?
Neutrons.
How do protons help distinguishes one atom from another?
different atoms have different numbers of protons. it also helps to establish the charge on certain atoms.
What makes one elemtn different from another?
The atoms of each element have a number of protons that is unique to each element. The number of protons makes one atom different from another.
What makes atoms of different elements different from one another.?
The number of protons in the nuclei of their atoms. This is the atomic number of an element and each element has its own unique atomic number.
What makes element different from one another?
The atoms of each element have a number of protons that is unique to each element. The number of protons makes one atom different from another.
Are all sample of elements are composed of atoms with same atomic mass?
No, different samples of an element can have varying atomic masses due to the presence of isotopes. Isotopes are atoms of the same element with different numbers of neutrons, leading to different atomic masses.
Who believed elements have their own atom?
Dalton, who got the idea from Democritis. Dalton turned this idea into a scientific theory which was All elements are composed of indivisible particles called atoms, Atoms of all elements are different from one another, Atoms of elements can mix together in whole number ratios to form compunds, and Chemical reactions occur as a result of when atoms are separated, joined, or rearranged.
How may atoms of the same element differ from one another?
Atoms of the same element can differ from one another in their atomic mass, which is determined by the number of neutrons in the nucleus. These variations are called isotopes. Isotopes of the same element have the same number of protons but different numbers of neutrons.
