Describe the main difference between the Bohr model of the atom and the Rutherford model

2 answers:

8 0

Bohr suggested, that there are definitive shells of particular energy and angular momentum in which an electron can revolve. It was not in Rutherford's model

Alex Ar [27]2 years ago

7 0

Bohr's Explanation of Stability. The Rutherford model had one problem: the energy expended by the orbiting electrons would eventually cause them to collapse into the nucleus, making the atom unstable. To explain the orbital model, Bohr<span> proposed a quantum theory of electron rotation</span>

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How many atoms are in Cu2MgHO

Illusion [34]

To find how many atoms are in the compound, we first have to find how many moles there are. The numbers in the subscript tell you how many moles of each element are present in the compound. Therefore, to find the number of total moles, we can add up each of the numbers in the subscript:

Cu₂Mg₁H₁O₁ *when there is no number under an element, it is implied that there is 1 mole of the element
2+1+1+1=5 moles

We can then use Avogadro's number and dimensional analysis to find how many atoms are in the compound (Avogadro's number is 6.02x10^23):

5 moles (6.02x10^23/1 mole)= 3.01x10^24 atoms

4 0

3 years ago

28. How many formula units are found in 0.250 moles of potassium nitrate?

Soloha48 [4]

Answer:

$\boxed {\boxed {\sf B. \ 1.5 *10^{23} \ formula \ units}}$

Explanation:

1 mole of any substance contains the same number of particles. The particles can vary (atoms, molecules, formula units), but there are always 6.022*10²³ particles. In this case, the particles are formula units of potassium nitrate or KNO₃.

Let's create a ratio.

$\frac {6.022*10^{23} \ formula \ units \ KNO_3}{1 \ mol \ KNO_3}$