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andreev551 [17]
3 years ago
12

Iron-60 Express your answer as an isotope.

Chemistry
1 answer:
lys-0071 [83]3 years ago
4 0

Isotopes are variants atoms of the same element, having same number of atomic(proton) number but different number of neutrons and mass number.

Considering iron-60

  • The atomic number which also equals the number of protons for the element iron as can be seen on the periodic table is 26
  • The name  iron-60 also tells us that this particlar  isotope's mass number is 60.  
  • The chemical symbol for Iron  is Fe

Now expressing  as an isotope iron-60 becomes   ⁶⁰₂₆Fe ( very unstable )

Other stable isotopes of Iron include   ⁵⁴₂₆Fe , ⁵⁶₂₆Fe, ⁵⁷₂₆Fe and ⁵⁸₂₆Fe

See more here: brainly.com/question/11236150

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B. Why is this number called a "mass” number?
deff fn [24]

<u>Answer:</u>

The mass of the atom depends on the sub atomic particles present in the nucleus of an atom.

That is, the protons and the neutrons.

Electrons are present around the nucleus and the mass is negligible since its mass is very very less.

<em>mass of a proton = 1.673\times10^{-27} kg</em>

<em>mass of a neutron = 1.675 \times 10^{-27} kg</em>

<em>mass of an electron = 9.109 \times 10^{-31} kg</em>

Mass number represents the mass of one particular isotope and it is a whole number for example, _6 C^{13}

Mass number is 13 and atomic number is 6 for the carbon isotope C-13.  

Atomic mass is different from mass number and it is a fraction since it is the average atomic mass of all the isotopes of an atom.

Atomic mass of C is 12.011 amu which we see in the periodic table is the average atomic mass of isotopes C-12, C-13 and C-14.

7 0
4 years ago
The neutron has ___ charge and is found in the ___
Elena-2011 [213]

Answer:

The Neutron has 0 charge and is found in the Nucleus

3 0
3 years ago
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The lecturer compared the humans eye to a camera lens
Ilya [14]
An analogy is the closest way to compare something to another that may not be related so that would be my pick. If that’s not it I guess he could maybe be making an observational opinion about it? Good luck hope this helped. Analogy
5 0
3 years ago
Please help, don't understand this topic
Darya [45]

Answer:

<u><em>Pangaea</em></u>

<u><em>Alfred Wegner</em></u>

<u><em>plate tectonics</em></u>

Explanation:

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The melting of ice cream is an example of which of the following?
Rus_ich [418]
It is physical change because ? has changed alone not with chemicals
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