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Margaret [11]
3 years ago
8

How has scientists' understanding of the atoms changed over time?

Chemistry
1 answer:
Viefleur [7K]3 years ago
8 0
They discovered more and more objects with different numbers of atoms. which gave them a better understanding
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U-236 spontaneously decays to Br-87, X and three neutrons. What is element “X”? 1. Th 2. Pb 3. Ra 4. La 5. Ba
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3 years ago
2FeCl3 ---&gt; 2FeCl2 + Cl2
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The correct options are as follows: 
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3. This type of redox reaction can not take place. This is because, in chemical reaction, the chlorine atom is always looking for another element that will donate an electron to it in order to become stable. Thus, chlorine atom easily gain electrons but it can not donate an electron to another element.<span />
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