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4 years ago

Unlike rocks, all minerals and _.

Chemistry

2 answers:

MariettaO [177]4 years ago

8 0

B) occur naturally, have a fixed chemical composition

mamaluj [8]4 years ago

6 0

Your answer is B I hope this helps

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_______ and _______ are located in the nucleus of the atom, while _______ exist in orbitals in the empty space outside of the nu

hram777 [196]

The atomic structure of an atom is well explained experimentally by different experiments like Rutherford's experiment etc

Based on these experiments it was determined that the atoms contains a central part known as nucleus which contains the positively charged sub atomic particles protons and neutral sub atomic particles neutron.

There is empty space around the nucleus in which negatively charged subatomic particles are found known as electrons.

So answers are

a) protons

b) neutrons

c) electrons

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4 years ago

How many electrons in an atom can have each of the following quantum number or sublevel designations?

storchak [24]

10 electrons in an atom can have each of the 3d quantum number or sublevel designations.

<h3>What are four quantum numbers?</h3>

Quantum numbers are used to characterize the values of conserved quantities in a quantum system's dynamics in both quantum physics and chemistry.

1) The "n" sign refers to the principal quantum number. It shows how many shells there are.

2) The "l" sign indicates the azimuthal quantum number. It gives the form of the orbitals and their angular momentum. 0 to n-1 make up its range.

3) " $m_{l}$ " stands for the magnetic quantum number. It serves as a cue for spatial orientation. The range of it is -l to +l.

4) Spin quantum number, represented by the symbol " $m_{s}$ ". It shows how the electron is spinning.

Learn more about quantum numbers here:

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2 years ago

Electron configuration for Lithium.

Ira Lisetskai [31]

The answer to problem is [He] 2s1. Hope it helps

4 0

4 years ago

Read 2 more answers

A mixture of 0.10 mol of NO, 0.050 mol of H2, and 0.10 mol of H2O is placed in a 1.0- L vessel at 300 K . The following equilibr

umka2103 [35]

Answer:

The concentration of N2 at the equilibrium will be 0.019 M

Explanation:

Step 1: Data given

Number of moles of NO = 0.10 mol

Number of moles of H2 = 0.050 mol

Number of moles of H2O = 0.10 mol

Volume = 1.0 L

Temperature = 300K

At equilibrium [NO]=0.062M

Step 2: The balanced equation

2NO(g) + 2H2(g) → N2(g) + 2H2O(g)

Step 3: Calculate the initial concentration

Concentration = Moles / volume

[NO] = 0.10 mol / 1L = 0.10 M

[H2] = 0.050 mol / 1L = 0.050 M

[H2O] = 0.10 mol / 1L = 0.10 M

[N2] = 0 M

Step 4: Calculate the concentration at the equilibrium

[NO] at the equilibrium is 0.062 M

This means there reacted 0.038 mol (0.038M) of NO

For 2 moles NO we need 2 moles of H2 to produce 1 mol N2 and 2 moles of H2O

This means there will also react 0.038 mol of H2

The concentration at the equilibrium is 0.050 - 0.038 = 0.012 M

There will be porduced 0.038 moles of H2O, this means the final concentration pf H2O at the equilibrium is 0.100 + 0.038 = 0.138 M

There will be produced 0.038/2 = 0.019 moles of N2

The concentration of N2 at the equilibrium will be 0.019 M

5 0

4 years ago

How many valence electrons does this atom have? (Urgent)

777dan777 [17]

Answer:

It only has 7 valence electrons because there are seven electrons in the highest orbital.

Explanation:

7 0

3 years ago

Unlike rocks, all minerals____ and _____.

Unlike rocks, all minerals and _.