You are watching: How many atoms are in 187 g of calcium
Consider these elements: N, Mg, O, F, Al. a. Write the electron configuration for each aspect. b. Arvariety the facets in order
N- 1s2 2s2 2p3
Mg- 1s2 2s2 2p6 3s2
O- 1s2 2s2 2p4
F- 1s2 2s2 2p5
Al-1s2 2s2 2p6 3s2 3p1
Order of decreasing atomic radius
Order of increasing ionization energy
Atomic radius decreases via rise in nonmetallic character. Looking at the electronic configurations, as effective nuclear charge rises, the atom becomes smaller sized and also the attrenergetic force between the nucleus and also the outermost electrons increases. Hence, the radius of the atom decreases and also ionization power increases. Note that the enhancement of more orbital electrons indicates enhancement of more nuclear charge because the both must specifically balance for the atom to remain electrically neutral. The more the electrons in the outermany shell, the better the first ionization power.
7 months ago
You are performing an experiment in your lab. To compare with other experiments you require your outcomes to be in moles. Throughout you
To be able to compare the result with various other experiments it has to be reported in moles.
variety of moles = mass / molecular weight
variety of moles of Mg(H₂PO₄)₂ = 600 / 218 = 2.75 moles
8 months ago
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The objective of controlling an experiment is to _____. A.double-examine your very own job-related B.compare one theory to one more concept C.p
Make certain the outcomes of the experiment are useful
In an experiment, particular variables (independent variables) are regulated to examine exactly how they affect various other variables (dependent variables) and also understand the relationship between them. Also, these experiments typically have a regulate experiment, of no readjust, to help compare outcomes and boosts their relicapability.
10 months ago
How does gravity aid to show a cause-and-result relationship?
The reason of no gravity means the effect will be we float.
7 months ago
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