Are all atoms in an element identical?
each element is made up of identical particles of matter called atoms. all the atoms in a pure substance or element are identical to one another but different to the atoms in a different element.
Is it true that all atoms of a given element are identical in that they have the same number of protons?
Elements, in turn, are pure substances—such as nickel, hydrogen, and helium—that make up all kinds of matter. All the atoms of a given element are identical in that they have the same number of protons, one of the building blocks of atoms (see below).
What is the same for all atoms of the same element?
All atoms of the same element have the same number of protons in their nucleus.
Who said all atoms are identical?
Dalton
Dalton based his theory on the law of conservation of mass and the law of constant composition. The first part of his theory states that all matter is made of atoms, which are indivisible. The second part of the theory says all atoms of a given element are identical in mass and properties.
Who said all atoms of a given element are identical but they differ from those of any other element?
A theory of chemical combination, first stated by John Dalton in 1803. It involves the following postulates: (1) Elements consist of indivisible small particles (atoms). (2) All atoms of the same element are identical; different elements have different types of atom.
Are all neutrons identical?
Review: Neutrons are all identical to each other, just as protons are. Atoms of a particular element must have the same number of protons but can have different numbers of neutrons.
Why are all atoms identical?
– Atoms of a given element are identical (meaning they have the same mass and properties). – Atoms retain their identity in all chemical reactions. This is basically the Law of Conservation of matter stating that an equal amount of mass exists before and after a reaction.
What do all atoms of a given element have in common?
The common feature is that the atoms of all elements consist of electrons, protons, and neutrons.
Are atoms Real?
Viewpoint: Yes, atoms are real, and science has developed to the point that atoms can not only be seen, but can also be individually manipulated. The atomic hypothesis, that all matter is composed of tiny indestructible particles, is generally attributed to Democritus (c.
Is all matter made of atoms?
[Explanation] Idea a: All matter is made up of particles called atoms and molecules (as opposed to being continuous or just including particles).
How are atoms of a given element alike?
Atoms of a given element are identical in their physical and chemical properties *not true all the time: isotopes 3. atoms of different elements differ in their physical and chemical properties 4. atoms of different elements combine simple, whole number ratios to form compounds
Is it true that all matter is composed of atoms?
1. all matter is composed of atoms, which cannot be subdivided, created, or destroyed 2. Atoms of a given element are identical in their physical and chemical properties *not true all the time: isotopes 3. atoms of different elements differ in their physical and chemical properties
Are there any atoms that are chemically identical?
No. Although two such atoms are essentially chemicallyidentical (they will chemically react in the same way), they are not completely identical. There’s more to the atom than the electrons. There’s also the nucleus.
Can a chemical element have the same number of neutrons?
The same chemical element can have a different number of neutrons and still be the same element. We refer to the atoms of the same element with different numbers of neutrons as “isotopes”. While the particular isotope involved does not affect how an atom will react chemically, it does determine how the atom will behave in nuclear reactions.