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How much is the atomic mass and atomic number for corbon?
Carbon is a chemical element with an atomic number of 6 and an atomic mass of about 12.011 atomic mass units.
How is the atomic mass number of a nucleus changed by alpha decay or by beta decay or by gamma decay?
The mass does not change much. The Atomic number will increase though.
Why atomic mass is always greater than atomic number?
Atomic mass includes the total mass of protons, neutrons, and electrons in an atom. Since protons and neutrons contribute significantly to the mass of an atom, atomic mass is generally greater than atomic number, which represents the number of protons in the nucleus. Electrons have a much smaller mass compared to protons and neutrons, so they have less impact on the overall atomic mass.
Why do the mass of atom depend upon the nucleus?
The mass of an atom depends on the nucleus because the nucleus contains the majority of the atom's mass in the form of protons and neutrons. Electrons, which orbit the nucleus, have a much smaller mass compared to protons and neutrons. The mass of an atom is essentially the combined mass of its protons and neutrons in the nucleus.
What sub-atomic particles make up the atomic mass?
The atomic mass of an atom is primarily made up of protons and neutrons, which are collectively known as nucleons. Protons, positively charged particles, and neutrons, neutral particles, reside in the nucleus of an atom. Electrons, which are negatively charged, contribute negligibly to the atomic mass due to their much smaller mass compared to protons and neutrons. Thus, the atomic mass is largely determined by the number of protons and neutrons in the nucleus.
What particles make up the atomic mass number of an element?
The atomic mass number of an element is determined by mass of the nucleus of an atom. Therefore the particles that make up the nucleus determine the mass number. These particles are protons and neutrons.The mass of the protons and neutrons do not vary between elements, but the number of each in the nucleus varies between elements and between isotopes of the same element.
Why is the density of the nuclear mass more than that of atomic mass?
The density of the nuclear mass is higher than that of the atomic mass because atoms are mostly empty space with the majority of their mass concentrated in the nucleus, which is extremely dense. The nucleus contains protons and neutrons tightly packed together, leading to a much higher density compared to the overall atomic mass spread out over the atom's volume.
How much atomic mass unit 1 g substance has?
Atomic mass is not a measure assigned to gross mass such as grams, kilograms, pounds, stones, tons etc.Atomic mass of an element is determined by the number of protons there are in the nucleus of that element.The amu (atomic mass unit) is standardized as 1/12 of the mass of an atom of Carbon
Mass of an atom is mainly due to nucleus?
Yes, the atomic weight of the protons and neutrons in an atom (the 2 particles that make up the nucleus) is 1 for each of them. The other particle in an atom is an electron. The atomic weight of an electron is 1/1840 so it is often considered negligible.
What happen to atomic number and mass number of nucleus when it emits electron?
When a nucleus emits an electron, the atomic number increases by 1 since the nucleus gains a proton. However, the mass number remains the same because an electron is much lighter than a proton or neutron.
Is the mass of an electron taken into account for the atomic mass?
Yes, the mass of an electron is technically included in the atomic mass of an atom, but its contribution is negligible compared to that of protons and neutrons. Atomic mass primarily reflects the mass of the nucleus, which contains protons and neutrons, as they are much more massive than electrons. Consequently, while electrons do contribute to the total mass, their effect on the overall atomic mass is minimal.
How are mass number and atomic number related?
If there is only 1 isotope then they are equal. Many naturally found elements have various isotopes (different numbers of neutrons in the nucleus). Each isotope has a diffent mass, so the measured atomic weight is an average.
