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3 years ago

Which unit is used for measuring atomic mass?

2 answers:

6 0

An atomic mass unit is a unit of measurement that is used to measure the mass of atoms. The atomic mass unit (abbreviated: amu or u) is roughly equal to the mass of 1 proton<span> or 1 neutron. The unified atomic mass unit and the dalton are different names for the same thing. The dalton name is used more over time.</span>

dusya [7]3 years ago

4 0

A.m.u which is for Atomic Mass Unit.
A proton and a neutron are both 1 a.m.u, but an electron is so tiny that it weighs nothing, so 0 a.m.u

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The site of protein synthesis or production'

aleksandrvk [35]

Answer:

The Art of Protein Synthesis

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3 years ago

starting with the idea of isostasy and ending with plate tectonics, explain how scientists understanding of the earth's crust ha

anzhelika [568]

Answer:

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3 years ago

: An unknown metal crystallizes in the cubic crystal structure. The metal has a radius 140pm, atomic mass of 135 g/mol, and dens

ki77a [65]

The cubic unit cell this metal crystallize as is BCC structure .

The structure of a crystalline solid, whether a metal or not, is best described by considering its simplest repeating unit, which is referred to as its unit cell.

The unit cell consists of lattice points that represent the locations of atoms or ions.

The entire structure then consists of this unit cell repeating in three dimensions

$\rm \rho =\dfrac{nM}{N_{0} a^{3}} \\\\\\\\\rm n =\dfrac{\rho N_{0} a^{3}}{M} \\\\\\\\Assuming\; it \; to \; be \; a\; BCC\; structure \\\\\\ r = \dfrac{\sqrt{3} \times a}{4} \\\\\\Therefore\; a = 3.23 \times 10^{-8}\\\\\\\\\rm n =\dfrac{13.3 \times 6.022 \times 10^{23}\times 3.23^{3}\times (10^{-8})^{3}}{135} \\\\$

n= 2

Hence our assumption was correct

It is a BCC structure .

Therefore the cubic unit cell this metal crystallize as is BCC structure .

To know more about unit cell

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2 years ago

Rain showers had continued over a particular area for several days. Which of these weather factors is most likely responsible?

krek1111 [17]

Hey Brayden!

Rain showers had continued over a particular area for several days. Which of these weather factors is most likely responsible?

Answer - A Stationary front

Hope This Helps!

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3 years ago

Read 2 more answers

Could someone explain what oxidation numbers are and what these questions are asking of me?

Oxana [17]

The oxidation state, sometimes referred to as oxidation number, describes the degree of oxidation of an atom in a chemical compound.

<u>Explanation:</u>

The oxidation number of an atom is the charge that atom would have if the compound was composed of ions. 1. The oxidation number of an atom is zero in a neutral substance that contains atoms of only one element. The oxidation number of simple ions is equal to the charge on the ion.

The oxidation number of a mono atomic ion equals the charge of the ion. The oxidation number of H is +1, but it is -1 in when combined with less electro negative elements. The oxidation number of O in compounds is usually -2, but it is -1 in peroxides. The oxidation number of a Group 1 element in a compound is +1.

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3 years ago