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aliina [53]
3 years ago
6

This scientist first organized the known elements by atomic weight and once organized, hypothesized that specific characteristic

s showed up periodically among the elements. The scientists is
Biology
2 answers:
Alla [95]3 years ago
8 0
The scientist who first organized the periodic elements according to its atomic weight was Alexander Emile Beguyer de Chancourtois. He was followed by John Newlands but they both had trouble arranging the properties because of some similarities that came out of the study.

It was Mendeleev who arranged the elements according to the atomic number that made the periodic table properly arranged he also knows that there are more elements that haven't been discovered. 
Sauron [17]3 years ago
8 0

Answer:

b

Explanation:

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ludmilkaskok [199]

Answer:

C

Explanation:

Im pretty sure it's C because of the 10% rule (each level has 10% of the energy of the one below it)

4 0
4 years ago
Can someone please help me<br> WILL MARK YOU BRAINLIEST !!
Sergio039 [100]

Answer:

The answer is A.Primary succession

Explanation:

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8 0
3 years ago
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In cells, __________ are proteins that are needed to lower the amount of energy required to start chemical reactions.
asambeis [7]
<span>In cells, enzymes are proteins that are needed to lower the amount of energy required to start chemical.</span>  

 Enzymes are biological catalysts which accelerate chemical reactions (reactions are millions of times faster than without them). Every enzyme has an active site which binds substrates and converts them into products. 
6 0
3 years ago
The three developmental stages of Ehrlichia are the elementary body, the initial body, and the morulaa. Trueb. False
jek_recluse [69]

Answer:

True.

Explanation:

<em>Ehrlichia </em>are the type of bacteria that belongs to the genus  Rickettsiales. These bacterias are responsible for the transmission of disease ehrlichiosis.

The developmental stages of this bacteria is well known and studied to control its transmission. The three well developmental stages of <em>Ehrlichia </em>are elementary body, the initial body and the morula stage.

Thus, the answer is true.

6 0
3 years ago
EXPLAIN Complete the statement by coloring, bolding, or highlighting the correct terms.
mrs_skeptik [129]

Answer:Before the reaction, there are 4 oxygen atoms,and after the reaction, there are 4 oxygen atoms.The same is true for hydrogen atoms.So, atoms are not created or destroyed.This supports the claim that matter is conserved during a chemical reaction.

Explanation:

4 0
3 years ago
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