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3 years ago

How do you figure out the number of electrons, neutrons, and protons of an element by only being given the mass?

2 answers:

8 0

Well there is the same amount of electrons as protons and if you add the number of protons and neutrons together you get the atomic number.
the number of protons is roughly half that of the atomic number but not all the time so i dont know how to find it just from the atomic mass but if you have a periodic table you can look at the atomic mass and find which element it is and then do it from there also the atomic mass is the bottom numbers the protons are the top numbers of the atom in like 2
He
4

Irina18 [472]3 years ago

6 0

Get a periodic table of elements. ...Find your element on the periodic table. ...Locate the element's atomic number. ...Determine the number of electrons. ...Look for the atomic mass of the element. ...Subtract the atomic number from the atomic mass.

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1. Describe the difference between an electron and a proton in terms of their charge.

Zarrin [17]

Explanation:

Protons have a positive charge. Electrons have a negative charge. The charge on the proton and electron are exactly the same size but opposite. Neutrons have no charge.

5 0

2 years ago

The mass number of an atom is equal to which of the following?

Phantasy [73]

Mass number is equal to the number of protons plus the number of neutrons in a nucleus of an atom

4 0

3 years ago

Part Of flowers that contains pollen is Please answer right

erma4kov [3.2K]

Answer:

its the stamen, it also supports the Anther.

3 0

3 years ago

Read 2 more answers

Think about the decomposition reaction of ozone.

____ [38]

Answer:

3441.6 grams.

Explanation:

2 O₃ → 3 O₂

First we convert 71.7 moles of ozone (O₃) into moles of oxygen gas (O₂), using the stoichiometric coefficients of the reation:

71.7 mol O₃ * $\frac{3molO_2}{2molO_3}$ = 107.55 mol O₂

Then we convert 107.55 moles of O₂ into grams, using the molar mass of O₂:

107.55 mol * 32 g/mol = 3441.6 g

3 0

3 years ago

Determine the number of moles within a sample of 10g of propane(C3H8). Round your answer to 2 decimal places with proper units.

a_sh-v [17]

Given :

10 gram sample of propane( C₂H₈ ).

To Find :

The number of moles of propane in given sample.

Solution :

Molecular mass of propane, M = (2 × 12) + ( 1 × 8 ) gram/mol

M = 32 gram/mol

We know, number of moles is given by :

Number of moles, n = m/M

n = 10/32 mol

n = 0.3125 mol

Therefore, number of moles in given sample is 0.3125 mol.

7 0

3 years ago