Can atoms of the same element be different?

ISOTOPES AND ATOMIC MASSES For many of the chemical elements there are several known isotopes. Isotopes are atoms with different atomic masses which have the same atomic number. The atoms of different isotopes are atoms of the same chemical element; they differ in the number of neutrons in the nucleus.

Can atoms of the same element can have different masses?

All atoms of a chemical element have the same atomic number (number of protons in the nucleus) but may have different mass numbers (from having different numbers of neutrons in the nucleus).

What is the smallest known particle?

Quarks Quarks, the smallest particles in the universe, are far smaller and operate at much higher energy levels than the protons and neutrons in which they are found.

Can atoms be destroyed?

No atoms are destroyed or created. The bottom line is: Matter cycles through the universe in many different forms. In any physical or chemical change, matter doesn’t appear or disappear. Atoms created in the stars (a very, very long time ago) make up every living and nonliving thing on Earth—even you.

What do all atoms of any single element have in common?

The common feature is that the atoms of all elements consist of electrons, protons, and neutrons.

Which two atoms have the same mass?

Protons and neutrons have approximately the same mass, about 1.67 × 10 24 grams, which scientists define as one atomic mass unit (amu) or one Dalton. Each electron has a negative charge (−1) equal to the positive charge of a proton (+1). Neutrons are uncharged particles found within the nucleus.

Are atoms indivisible?

For instance, we now know that atoms are not indivisible—as stated in part one—because they are made up of protons, neutrons, and electrons. The modern picture of an atom is very different from Dalton’s solid, massy particle.

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What is the smallest thing in the universe?

Protons and neutrons can be further broken down: they’re both made up of things called “quarks.” As far as we can tell, quarks can’t be broken down into smaller components, making them the smallest things we know of.

What is the God particle theory?

The Higgs boson is the fundamental particle associated with the Higgs field, a field that gives mass to other fundamental particles such as electrons and quarks. … The Higgs boson was proposed in 1964 by Peter Higgs, François Englert, and four other theorists to explain why certain particles have mass.

Is anything smaller than a quark?

Because quarks are just too small. In the simple world of particle physics, the size of things is measured by how easy they are to hit. … A proton has a much smaller cross section than that, and the quarks and gluons, of which the proton is made, are even smaller.

Can atoms multiply?

Do atoms reproduce? … In the sense that living organisms reproduce, no, atoms do not reproduce. Some atoms are radioactive and decay into other atoms. Some emit alpha particles when they decay.

Can elements be lost?

The undiscovered elements How can an element be lost? Scientists, and the general public, have always thought of them as being found, or discovered. However, more elements have been ‘undiscovered’ than discovered, more ‘lost’ than found.

Is it true that atoms Cannot be destroyed?

Atoms cannot be created or destroyed. Atoms of different elements may combine with each other in a fixed, simple, whole number ratios to form compound atoms.

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What are all atoms of any element?

All atoms of an element have the same number of protons, and every element has a different number of protons in its atoms. For example, all helium atoms have two protons, and no other elements have atoms with two protons.

Why are all atoms neutral?

Electrons have electric charge of -1 and the number of electrons in an atom is equal to the number of protons. … Heavier atoms tend to have more neutrons than protons, but the number of electrons in an atom is always equal to the number of protons. So an atom as a whole is electrically neutral.

What is used to identify an element?

There are two properties that can be used to identify an element: the atomic number or the number of protons in an atom. The number of neutrons and number of electrons are frequently equal to the number of protons, but can vary depending on the atom in question.

Can two atoms have same number of nucleons explain?

Inside the nucleus reside nucleons: neutrons and protons. When an atom is characterized by a unique number of nucleons, we refer to it as a nuclide. … Two atoms with the same atomic number, but different mass numbers (same number of protons, different number of neutrons), are called isotopes, or isotopic nuclides.

What makes each element unique?

Each element has its own unique properties. Each contains a different number of protons and neutrons, giving it its own atomic number and mass number. The atomic number of an element is equal to the number of protons that element contains.

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Are atoms mostly empty space?

Atoms are not mostly empty space because there is no such thing as purely empty space. Rather, space is filled with a wide variety of particles and fields. … It’s true that a large percentage of the atom’s mass is concentrated in its tiny nucleus, but that does not imply that the rest of the atom is empty.

Who first said atoms are indivisible?

Democritus of Leucippus of Miletus (5th century bce) is thought to have originated the atomic philosophy. His famous disciple, Democritus of Abdera, named the building blocks of matter atomos, meaning literally “indivisible,” about 430 bce.

How do we know atoms Real?

There are three ways that scientists have proved that these sub-atomic particles exist. They are direct observation, indirect observation or inferred presence and predictions from theory or conjecture. Scientists in the 1800’s were able to infer a lot about the sub-atomic world from chemistry.

Why are atoms called indivisible?

Matter is composed of indivisible building blocks. This idea was recorded as early as the fifth century BCE by Leucippus and Democritus. The Greeks called these particles atomos, meaning indivisible, and the modern word “atom” is derived from this term.