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Papessa [141]
4 years ago
8

Are there some elements on the periodic table that hasn't been discovered?

Chemistry
2 answers:
mamaluj [8]4 years ago
4 0
We can theoretically create as many elements as we want in laboratories.

All the naturally existing elements on earth have however been discovered.
blsea [12.9K]4 years ago
3 0
No, we've found every naturally made element. There are currently only 92 naturally made elements on the periodic table. All the elements with more than 92 protons are synthetic. There are new elements that can be added to the periodic table. But these elements are man-made. There are no more elements to be discovered.
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3 years ago
Name a device or other object whose major purpose is to convert
Alenkinab [10]

Answer:

Storage battery oe cell

Explanation:

The storage battery or cell is a device that coverts chemical energy into light energy when required.

During charging of battery, there is some chemical changes in the battery and absorb energy. The absorbed energy is converted into electrical energy when connected to an external load.

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4 0
4 years ago
What main criterion determines major divisions in the geologic time scale?
koban [17]

The answer is B. the occurrence of huge events in Earth's natural history

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4 0
3 years ago
Maggie has 4 binders with 30 stamps in each binder. She has 3 binders with 36 baseball cards in each binder. If she gives away 4
Sliva [168]

Answer:

The number of stamps and cards Maggie has left if she gives 45 stamps to a friend is 183

Explanation:

If Maggie gives 45 stamps to a friend, you must calculate the number of stamps and cards she has left.

You know Maggie has 4 folders with 30 stamps in each folder. So the number of stamps she owns is calculated as:

4 folders*30 stamps in each folder= 120 stamps

If Maggie gives 45 stamps to a friend, then the number of stamps she has left will be calculated as the difference (the subtraction) between the stamps she owned and the ones she gives away:

120 stamps - 45 stamps= 75 stamps

On the other hand, she has 3 binders with 36 baseball cards in each binder. So the number of cards she owns is calculated as:

3 binders * 36 baseball cards in each binders= 108 baseball cards

The number of stamps and cards you have left is calculated as:

75 stamps + 108 baseball cards= 183

<em><u>The number of stamps and cards Maggie has left if she gives 45 stamps to a friend is 183</u></em>

4 0
3 years ago
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