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jolli1 [7]
3 years ago
10

Which describes mendeleevs use of the term eka-aluminum??

Chemistry
2 answers:
solong [7]3 years ago
7 0

a. A mixture of aluminum and an unknown element.

hoped this helped!!

Nikitich [7]3 years ago
3 0

an element predicted to have properties similar to alumium

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An automobile is driving uphill. Which form of energy is not involved in this process?
Lapatulllka [165]
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3 years ago
Who was on the grand committee
Rzqust [24]

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European Union was on grand committee

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3 years ago
What is the electron configuration for<br> 08<br> 16
Elis [28]

The electron configuration for Oxygen : [He] 2s²2p⁴

<h3>Further explanation</h3>

Writing electron configurations starts from the lowest to the highest sub-shell energy level. There are 4 sub-shells in the shell of an atom, namely s, p, d, and f. The maximum number of electrons for each sub-shell is  

• s: 2 electrons  

• p: 6 electrons  

• d: 10 electrons and  

• f: 14 electrons  

Charging electrons in the sub-shell uses the following sequence:  

<em>1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d¹⁰, 4p⁶, 5s², 4d¹⁰, 5p⁶, 6s², etc.  </em>

The element is Oxgen, with symbol O, and :

the atomic number=8=number of electron

the atomic mass=16

The electron configuration based on the number of electrons(for Oxygen=8), so the configuration :

\tt _8^{16}O:1s^22s^22p^4 or we can write with noble gas [He] 2s²2p⁴

3 0
2 years ago
Chemistry is: a) the mystical search for the elixir of life. b) speculation about the nature of matter. c) the study of matter a
Yuki888 [10]

Answer:

c) the study of matter and the changes it undergoes

Explanation:

Chemistry -

It is the sub topic of science , dealing with the study of matter , the properties of matter , the type of interaction between the particles of matter , the reason for the particle of matter to combine and separate in order to form new substance .

The basic concepts of chemistry are applicable on the day to day activities.

Hence, from the given options , the correct statement is c) the study of matter and the changes it undergoes.

7 0
3 years ago
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