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hram777 [196]
3 years ago
5

What value is closest to the mass of the atom? 4 amu 6 amu 10 amu 14 amu

Biology
2 answers:
Andre45 [30]3 years ago
7 0
I am 100% sure it is 10 AMUS
lakkis [162]3 years ago
4 0

The right answer is 10 amu.

The unit of unified atomic mass, of symbol "u", is a standard unit of measure, used to express the mass of atoms and molecules.

This unit does not belong to the International System (SI), and its value is obtained experimentally. It is defined as 1/12 of the mass of a nuclide 12C (carbon 12), unbound at rest and in its ground state. In other words, a 12C atom has a mass of exactly 12u, and a mole of 12C atoms (N atoms, where N is the number of Avogadro) has a mass of exactly 12g. As a result, 1 u is approximately 1.660 538 921 × 10-27 kg.

The average mass of a nucleon depends on the total number of nucleons in the atomic nucleus, because of the mass defect. This is why the mass of a proton or a neutron taken separately is strictly greater than 1 u.

In the nucleus, we can see that there are 10 nucleons (protons and neutrons) so the mass of the atom is close to 10amu.

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OleMash [197]

Answer: B. under use; it is a scarce resource.

Explanation:

Early settlers in the town of Dry Gulch drilled wells to pump as much water as they wanted from the single aquifer beneath the town. (An aquifer is an underground body of water.) As more people settled in Dry Gulch, the aquifer level fell and new wells had to be drilled deeper at higher cost.Residents of Dry Gulch have a private incentive to under use water because it is a scarce resource.

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nexus9112 [7]

Answer:

The most inclusive level of organization is called the Biosphere.

Explanation:

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Populations is formed by a group of the same organisms living in the same area.

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Need help on this plz help!!
nydimaria [60]

Tin, because it has five energy levels with four electrons in the fifth level .

Explanation:

Tin has an electronic configuration as

1s2,2s2,2p6,3s2,...........4d10, 5s2,5p2

They have four valence electrons in their outer shell

Among the four diagrams given Tin is least reactive because the atomic radius of tin is largest among all four options. Due to large atomic radius electronegativity decreases and hence Tin is the least reactive element among Neon, Chlorine, gallium and tin.

The electronegativity of an element is its tendency to complete its octet by attracting electrons towards itself. Also tin is at the lowest place in the periodic table among all the four mentioned elements, its ionization energy is also low hence less electronegative and least reactive.

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