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Zepler [3.9K]
3 years ago
12

Which TWO statements describe the ocean floor giving brainliest

Chemistry
2 answers:
zaharov [31]3 years ago
7 0

Answer:

A & B

Explanation:

Done the Quiz

lesya [120]3 years ago
6 0

Answer:

A and B

Explanation:Ap3x approved :)

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50 POINTS!!!
lesya692 [45]

The answer is: K is more reactive than Ca because K has to lose only one electron to complete its outermost shell.

Potassium is a chemical element with atomic number 19 (number of electrons is 19).

Electron configuration of potassium is: ₁₉K 1s²2s²2p⁶3s²3p⁶4s¹.

Potassium is the alkali metal and has a single valence electron in the outer electron shell.

Periodic law is the arrangement of the elements in order of increasing atomic number.

For example all alkaline metals (I group of periodic table, Na, K, Cs...) loose one electron in chemical reaction and react vigorously with water.

Reactivity series is an empirical progression of a series of metals, arranged by their reactivity from highest to lowest (alkaline metals have highest reactivity and Noble metals lowest reactivity).

The ionization energy (Ei) is the minimum amount of energy required to remove the valence electron, when element lose electrons, oxidation number of element grows (oxidation process).

Alkaline metals (far left in main group) have lowest ionizations energy and easy remove valence electrons (one electron, earth alkaline metals (right next to alkaline metals) have higher ionization energy than alkaline metals, because they have two valence electrons.


7 0
3 years ago
Please help me with this science
svlad2 [7]
You didn't ask a question just to let you know
6 0
3 years ago
On the periodic table how many periods are there and how many columns are there
mestny [16]
There are seven periods with eighteen columns in the periodic table.
8 0
3 years ago
Describe three signs that a chemical reaction has taken place and give an example of each sign
il63 [147K]
Color change, temperature change, bubbling, state change

green to blue, hot to cold, bubbles (lol), and liquid to gas
7 0
2 years ago
Which branch of chemistry would be used to make steel?
Tpy6a [65]

Answer:

the five major branches of chemistry are organic, inorganic, analytical, physical, and biochemistry.

5 0
3 years ago
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