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Protons and neutrons, which reside in the nucleus of an atom, have roughly the same mass, approximately 1 Atomic Mass unit (amu) each. Electrons, on the other hand, have a significantly smaller mass, about 1/1836 of a proton's mass, making them negligible in terms of overall atomic mass. Consequently, when calculating an atom's mass, the contributions from protons and neutrons are primarily considered, while electrons have a minimal effect.
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Is an electron just a name for both neutrons and protons?
No. Protons and neutrons make up the nucleus of the atom. Electrons orbit the nucleus. The best way to think about an atom is to look at it as a miniature version of our solar system. The nucleus would be the sun (protons and neutrons) and the electrons would be the planets, orbiting around it.
What best describes the relative positions of proton neutrons and electrons in an atoms?
In an atom, protons and neutrons are found in the nucleus at the center, forming the atom's core, while electrons orbit around the nucleus in electron shells or energy levels. Protons carry a positive charge, neutrons are neutral, and electrons have a negative charge. This arrangement creates an overall neutral charge for the atom when the number of protons equals the number of electrons. The nucleus is much smaller and denser compared to the space occupied by the electrons.
Is there anything smaller than an atom?
Atoms are considered the smallest unit of matter, made up of protons, neutrons, and electrons. Subatomic particles like quarks and leptons make up protons, neutrons, and electrons, but are not considered smaller than an atom.
Which best describes an atom of carbon-13?
An atom of carbon with 6 protons and 7 neutrons.
How many protons and neutrons does radium have?
88
Is an electron just a name for both neutrons and protons?
No. Protons and neutrons make up the nucleus of the atom. Electrons orbit the nucleus. The best way to think about an atom is to look at it as a miniature version of our solar system. The nucleus would be the sun (protons and neutrons) and the electrons would be the planets, orbiting around it.
Which best describes the relationship between subatomic particles in any neutral atom?
Protons are electrically positive charged, electrons are electrically negative charged, neutrons are electrically neutral. The number of electrons and protons is equal in a neutral atom. Protons and neutrons are in the atomic nucleus, electrons on electron shells, forming electron clouds.
What is best described as an atom?
A core of protons and neutrons surronded by electrons.
Did Mendeleev know about protons neutrons and electrons?
No, Mendeleev did not know about protons, neutrons, and electrons. He is best known for creating the periodic table of elements based on the properties of the elements without knowledge of the atomic structure. The discovery of protons, neutrons, and electrons came later with the development of atomic theory.
What best describes the relative positions of proton neutrons and electrons in an atoms?
In an atom, protons and neutrons are found in the nucleus at the center, forming the atom's core, while electrons orbit around the nucleus in electron shells or energy levels. Protons carry a positive charge, neutrons are neutral, and electrons have a negative charge. This arrangement creates an overall neutral charge for the atom when the number of protons equals the number of electrons. The nucleus is much smaller and denser compared to the space occupied by the electrons.
Is there anything smaller than an atom?
Atoms are considered the smallest unit of matter, made up of protons, neutrons, and electrons. Subatomic particles like quarks and leptons make up protons, neutrons, and electrons, but are not considered smaller than an atom.
Which best describes an atom of carbon-13?
An atom of carbon with 6 protons and 7 neutrons.
The sum of the protons and the neutrons will tell the atomic what?
Atomic mass number of the atom. The best way to remember it is: the majority of the mass of an atom is made up of the protons and neutrons (the electrons are very light!), therefore the atomic mass number is the sum of the protons and neutrons.
What best describes the nucleus of atom?
Nucleus is the centre of an atom and consists of positively charged protons and neutral neutrons.
Which best describes the nucleus of an atom?
The nucleus of an atom is the densest part of an atom. It contains the protons and neutrons of an atom.
What term best describes the sum of the number of protons and neutrons in an atom?
Atomic mass or mass number.
What is the best description of how an atom is organized?
An atom is organized with a nucleus at its center, containing protons and neutrons. Electrons orbit the nucleus in specific energy levels or shells. The nucleus is positively charged, while electrons are negatively charged, creating a stable, neutral atom.
