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The statement that atoms of the same element are exactly alike is attributed to John Dalton, who proposed the atomic theory in the early 19th century. Dalton's theory posited that all atoms of a given element are identical in mass and properties, which laid the foundation for modern chemistry. However, it is important to note that later discoveries, such as isotopes, revealed that atoms of the same element can differ in mass due to variations in the number of neutrons.
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Who proposed that all atoms cannot be divided or destroyed and that atoms of the same element are exactly the same?
Dalton. Dalton's atomic theory stated that atoms are indivisible and indestructible and unchangeable.
Who said that each element is composed of extremely small particles called atoms?
Someone Rutherford.
Who said that all atoms of an element are identical in size mass and other properties?
John Dalton
What can be said about the of neutrons that atoms of one element have?
The number of neutrons in the atoms of a specific element can vary, leading to the formation of isotopes. While all atoms of a given element have the same number of protons (defining the element), the neutron count can differ, affecting the atomic mass and stability of the isotopes. For example, carbon typically has six neutrons, but carbon-14, an isotope of carbon, has eight neutrons. These variations can influence the element's properties and behavior in chemical reactions.
What can be said about the number of electrons atoms of one element can have?
Atoms of a given element have a specific number of electrons that equals the number of protons in their nucleus, which defines the element's atomic number. For example, carbon has six protons and six electrons. In neutral atoms, the number of electrons matches the number of protons, but ions can have more or fewer electrons due to gaining or losing them. Thus, the number of electrons in an atom of a specific element can vary in ionic forms but remains constant for neutral atoms.
Who said all elements are made of atoms?
An atom is the smallest unit of any element.
Who proposed that all atoms cannot be divided or destroyed and that atoms of the same element are exactly the same?
Dalton. Dalton's atomic theory stated that atoms are indivisible and indestructible and unchangeable.
What is the difference between elements and atoms?
An atom is the smallest piece of an element. Said another way, and element is made up one and only one kind of atoms.
Who said that each element is composed of extremely small particles called atoms?
Someone Rutherford.
Who said that all atoms of an element are identical in size mass and other properties?
John Dalton
A carbon molecule that has a different arrangement of atoms is known?
If the atoms of the same element (not only carbon!) occur in different arrangements, they are said to be different allotropes.
When an atoms loses an electron it?
The atom is said to be ionized. (It can also be said to be oxidised.)
Some atoms such as carbon-14 whose nuclei are not stable lose parts of their nucleus through decay -In the process they become another element -Atoms such as this are said to be?
Atoms with nuclei that are not stable and lose parts through decay are said to be radioactive. This process results in the transformation of the atom into another element, along with the release of energy in the form of radiation.
What can be said about 1 mol Ag and mol Au?
1 mol of Ag and 1 mol of Au can be said to contain the same amount of atoms of each element.
What subatomic particles can differ between neutral atoms of the same element?
Neutral atoms of the same element can differ in the number of neutrons, which results in different isotopes of the same element. Isotopes have the same number of protons and electrons, but different numbers of neutrons.
What can be said about the of neutrons that atoms of one element have?
The number of neutrons in the atoms of a specific element can vary, leading to the formation of isotopes. While all atoms of a given element have the same number of protons (defining the element), the neutron count can differ, affecting the atomic mass and stability of the isotopes. For example, carbon typically has six neutrons, but carbon-14, an isotope of carbon, has eight neutrons. These variations can influence the element's properties and behavior in chemical reactions.
What can be said about the number of electrons atoms of one element can have?
Atoms of a given element have a specific number of electrons that equals the number of protons in their nucleus, which defines the element's atomic number. For example, carbon has six protons and six electrons. In neutral atoms, the number of electrons matches the number of protons, but ions can have more or fewer electrons due to gaining or losing them. Thus, the number of electrons in an atom of a specific element can vary in ionic forms but remains constant for neutral atoms.
