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2 years ago

Does a periodic table indicate the occurrence of elements

Chemistry

1 answer:

guajiro [1.7K]2 years ago

5 0

Answer:

Explanation:

it only shows the atomic number and basically the chemical behavior of the element

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A flask contains a gas mixture of hydrogen, nitrogen and methane. The total pressure of the mix is 3.0 atm. The partial pressure

ollegr [7]

Answer:

$P_{N_2}=1.0atm$

Explanation:

Hello,

Considering the Dalton's law which states that the total pressure of a gaseous system is defined by the summation of the the partial pressures of the present gases:

$P_T=\Sigma P_i$

For the given system:

$P_T=P_{H_2}+P_{N_2}+P_{CH_4}$

Solving for the partial pressure of nitrogen we obtain:

$P_{N_2}=3.0atm-0.5atm-1.5atm=1.0atm$

Best regards.

3 0

2 years ago

State two differences between metals and non metals with respect to their

Naya [18.7K]

Answer:

Physical Properties

1. Metals are shiny but most non - metals lack this property.

2. Metals are able to deform under compression (malleable) but most non - metals lack this property.

Chemical Properties

1. Metals are good conductorsof heat and electricity but most non - metals are insulators.

2. Metals, when exposed to water atmospheric oxygen tend to rust but non - metals lack this chemical property

7 0

2 years ago

Write a paragraph or two on electromagnetism.

patriot [66]

Answer:

Electromagnetism is the study of the electromagnetic force, one of the four fundamental forces of nature. It includes the electric force, which pushes all charged particles, and the magnetic force, which only pushes moving charges.It is used in many electrical appliances to generate desired magnetic fields. It is even used in a electric generator to produce magnetic fields for electromagnetic induction to occur.

Explanation:

tell me if this helped, ill try and explain better

6 0

2 years ago

Does The nucleus of an atom contain all of the protons in the atom

insens350 [35]

Answer:

The nucleus, that dense central core of the atom, contains both protons and neutrons.

So to answer your question yes it does contain all of the protons in the atom.

* Hopefully this helps:) Mark me the brainliest:)!

5 0

2 years ago

Where can you find the number of electrons of an element?

andrezito [222]

Answer:

Subtract the charge from the atomic number. When an ion has a positive charge, the atom has lost electrons. To calculate the remaining number of electrons, you subtract the amount of extra charge from the atomic number. In the case of a positive ion, there are more protons than electrons.

Explanation:

5 0

2 years ago

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Does a periodic table indicate the occurrence of elements​

Does a periodic table indicate the occurrence of elements