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Doss [256]
3 years ago
13

Please help ASAP!! I am not sure how to solve this! ​

Chemistry
1 answer:
umka2103 [35]3 years ago
7 0

Answer:

Potassium (K) has 19 protons.

Each neutral atom of Potassium has 19 electrons.

Explanation:

A) Potassium has 19 protons because the atomic number tells us how many protons are in an atom of the element. (The atomic number is the number above the element symbol. For example, the number above "K" is 19, which is the atomic number).

B) If an atom is neutral, this means that the atom has neutral energy. Protons give positive energy and electrons give negative energy. For the atom to be neutral, the atom must have balanced energy, therefore, making the number of electrons equal to the number of protons in a neutral atom.

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Gamma radiation is the most dangerous.
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How many moles of NaCl are needed to make 5.25 L of a 0.25 M solution
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m = 21.915 g of NaC to create the right balance between

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Zinc and Lead (II) nitrate react to form what?
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4 years ago
The electron configurations of two unknown elements X and Y are shown.
Svetllana [295]

 X: 1S²2S²2P⁶

Y: 1S²2S²2P⁶3S²3P⁶

The statement  which  is most likely   correct  about  the two elements  is

They  will  not react  because  both  have a complete outermost shell and are  stable.


 <u><em>Explanation</em></u>

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6 0
4 years ago
Read 2 more answers
If you add a chunk of zinc to a beaker of acid and zinc shavings to another beaker of acid, the sample with the zinc shavings wi
Svet_ta [14]

Answer:

The answer to your question is: letter C

Explanation:

The only difference between the samples of Zinc is their presentation, one is a chunk of zinc and the other one is shavings.

1) Catalyst                              This option is incorrect because the description

                                                do not mention anything about catalyst.    

2) Nature of the reaction      The nature of the reaction is the same.

3) Surface area                       This is the right answer because in the chunk

                                                 there is less surface area than in the shavings.

4) Temperature                       It is not mention anything about temperature in

                                                the description.

8 0
4 years ago
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