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Westkost [7]
2 years ago
9

Why don't elements in a group have consicutive atomic numbers?​

Chemistry
2 answers:
slamgirl [31]2 years ago
7 0

Answer:

Periods have consecutive atomic number as they are in a row and groups are vertical meaning they are in a column and groups have similar properties

Ksivusya [100]2 years ago
6 0
Elements in a period have consecutive atomic numbers. Groups have same properties and not consecutive atomic numbers.
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What do you think is the most important element and why? Include information
Snowcat [4.5K]

Answer:

Hydrogen

Explanation:

It is considered a special element due to its flexibility in giving up & taking in electrons, therefore making it good for organic & inorganic chemistry. Hydrogen has only one proton and one electron and is the only element which has no neutrons. it is considered as the simplest element in the universe and gives a valid reason for it to be the most abundant and common element in the universe.

Hoped this helped! If this doesn't fit your 80 word count, you could shorten it.

5 0
3 years ago
When 1 mole of H2(g) reacts with F2(g) to form HF(g) according to the following equation, 542 kJ of energy are evolved H2(g) + F
topjm [15]

Answer: The reaction is exothermic. The value of q is  -542 kJ.

Explanation:

Endothermic reactions are defined as the reactions in which energy of the product is greater than the energy of the reactants. The total energy is absorbed in the form of heat and  for the reaction comes out to be positive.

Exothermic reactions are defined as the reactions in which energy of the product is lesser than the energy of the reactants. The total energy is released in the form of heat and  for the reaction comes out to be negative.

Thus H_2(g)+F_2(g)\rightarrow 2HF(g) evolves heat , it is exothermic in nature. The value of q is -542kJ.

7 0
3 years ago
The process by which organisms makes more<br> organisms like themselves is called
kondor19780726 [428]

Answer:

Reproduction

Explanation:

Reproduction is the biological process by which new “offspring” (like organisms) are produced from their “parents" (the original organism)

7 0
3 years ago
Read 2 more answers
A 30-kg girl and a 25-kg boy face each other on friction-free roller blades. the girl pushes the boy, who moves away at a speed
dsp73
0.83 m/s seems the correct answer, hope it helps
6 0
3 years ago
What are metals that have been mixed together called
d1i1m1o1n [39]

Answer:

Alloys

I hope this helps!

6 0
3 years ago
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