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Kay [80]
3 years ago
10

5) Which of the elements have a charge of 2-, as determined by their locations on

Chemistry
1 answer:
Galina-37 [17]3 years ago
5 0
The metals one column to the right of the first have a charge of 2-. This is due to the element having an extra electron in comparison to the number of neutrons.
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The volume of a gas at STP is 7.30 L. What is the quantity of gas in this sample?
sladkih [1.3K]

0.326 moles of gas

Explanation:

Knowing the volume of a gas at standard temperature and pressure (STP) we may calculate the number of moles of the gas using the following formula:

number of moles = volume / 22.4 (L /mole)

number of moles of gas = 7.3 (L) / 22.4 (L /mole)

number of moles of gas = 0.326 moles

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3 years ago
What physical properties are important for the materials used to make mountain bikes?
Nikitich [7]

Answer:

density, yield strength, elasticity, Ductility, toughness, fatigue limit and corrosion resistance

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2 years ago
How many total orbitals are within the 3s, 3p, and<br> energy level?
Nina [5.8K]

The answer for the following question is explained below.

Therefore the total number of orbitals are " 9 ".

Explanation:

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An orbital is a mathematical function that describes the wave-like behavior of an electron,electron pair,or the nucleons.

The total number of orbitals present in the 3rd energy level is 9.

Here,

A 3 s subshell has only one orbital.

A 3 p subshell has three orbitals.

A 3 d subshell has five orbitals.

Therefore the total number of orbitals is:

3 s = 1 orbital

3 p = 3 orbitals

3 d = 5 orbitals

total orbitals in 3rd energy level is = 1 + 3 + 5 =9

Therefore the total number of orbitals are " 9 ".

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