The answer is D. His belief is was that atoms could not be split. That is what was disproved really fast ;)
Answer:
6.70 grams of krypton-81 was present when the ice first formed
Explanation:
Let use the below formula to find the amount of sample
where
here
t = 458,000 years
= 229,000
= \
n = = 2.000
Now substituting the values
Answer:
Boron
Explanation:
You can find this by looking at the number of protons in Boron, 5.
Then calculate how many electrons you are given, in this case the 2 core plus the 3 valence equal 5 total electrons
Neutral elements have the same number of protons and electrons, so your answer would be the element with 5 electrons, Boron.
You can also know this by using electron configuration. Since you kow there are 5 electrons then you can use EC to find out where your element is. In this case it is: 1s2 2s2 2p1
Answer:
2 is the valancy of alkine
Answer:
Krypton has 4 orbital shells
<u>Extra Information:</u>
<em>Krypton has 36 electrons which are arranged in these 4 orbit shells, </em>
<em>The order in which electrons are arranged in these shells is 2,8,18,8</em>
