The answer is Ra
Atomic number for Be is 4
Atomic number for Mg 12
Atomic number for Ra 88
Atomic number for Ba 56
The angle of incoming solar radiation influences seasonal temperatures of locations at different latitudes. ... At higher latitudes, the angle of solar radiation is smaller, causing energy to be spread over a larger area of the surface and cooler temperatures.
The most chemically stable of the four atoms given the <em>electron configuration</em> of each is; Choice A : He.
Helium (He) is a chemical element with the atomic number 2 on the periodic table. It's electron formation is 1s². It has zero valence electron in it's atomic shell.
Lithium (Li) is a chemical element with the atomic number 3 on the periodic table. It's electron formation is 1s² 2s¹. It has 1 valence electron in it's atomic shell.
Nitrogen (N) is a chemical element with the atomic number is 7 on the periodic table. It's electron formation is 1s² 2s² 2p³. It has 3 valence electron in it's atomic shell.
Sulphur (S) is a chemical element with the atomic number is 16 on the periodic table. It's electron formation is 1s² 2s² 2p⁶ 3s² 3p4. It has 4 valence electron in it's atomic shell.
Chemical stability is measured by the number of valence electron present in a chemical element atomic shell. Therefore Helium (He) has zero (0) valence electron in it's atomic shell making it the most stable amongst the chemical element listed above because elements with zero valence electron are unreactive and are the most stable elements on the periodic table.
Read more:
brainly.com/question/8590534?utm_source=android&utm_medium=share&utm_campaign=question
Answer:
The least count of vernier calipers is 0.01 g.
(B) is correct option.
Explanation:
Given that,
The digit that would have to be estimated in reading this instrument,
According to figure,
We need to calculate the pitch
Using formula of pitch
Put the value into the formula
We need to calculate the least count of vernier calipers
Using formula of least count
Put the value into the formula
Hence, The least count of vernier calipers is 0.01 g.
(B) is correct option.
Given what we know, we can confirm that based on the evidence found, someone deliberately set fires at different points around the warehouse.
<h3>Why do we think the fires were deliberate?</h3>
This has to do with the natural way in which fires spread. Fires that occur naturally or accidentally tend to concentrate in one place, then spread throughout the warehouse over time, however, this is not what the detective found. Instead, there are indications that multiple fires started simultaneously.
Therefore, given the very unlikely nature of this occurring naturally, we can confirm that based on the evidence found, someone deliberately set fires at different points around the warehouse.
To learn more about arson forensics visit:
brainly.com/question/15018338?referrer=searchResults
