Answer: 1) The element that would be the most effective at accepting electrons from another reagent is Cl.
2) The element that would be expected to be the best insulator is Cl (non-metal).
3) The element that is best able to form an ionic compound with sulfur is Rb.
Explanation:
Metals are the species which readily lose electrons in order to attain stability and non-metals are the species which readily accept an electron in order to attain stability.
Generally, metals on combining with non-metals lead to the formation of an ionic compound. For example, is an ionic compound where Rb is the metal and S is the non-metal.
Out of the given option Cl is highly electronegative in nature so it will readily accept an electron from a donor atom.
Insulator are the substances which do not allow electric current to pass through them. For example, non-metals are insulators.
Thus, we can match the elements below to the appropriate blanks in the following sentences.
1) The element that would be the most effective at accepting electrons from another reagent is Cl.
2) The element that would be expected to be the best insulator is Cl (non-metal).
3) The element that is best able to form an ionic compound with sulfur is Rb.
Answer:
is a chemical bond i think is true
Answer:
see explanation below
Explanation:
Question is incomplete, so in picture 1, you have a sample of this question with the missing data.
Now, in general terms, the absorbance of a substance can be calculated using the beer's law which is the following:
A = εlc
Where:
ε: molar absortivity
l: distance of the light in solution
c: concentration of solution
However, in this case, we have a plot line and a equation for this plot, so all we have to do is replace the given data into the equation and solve for x, which is the concentration.
the equation according to the plot is:
A = 15200c - 0.018
So solving for C for an absorbance of 0.25 is:
0.25 = 15200c - 0.018
0.25 + 0.018 = 15200c
0.268 = 15200c
c = 0.268/15200
c = 1.76x10⁻⁵ M
The answer is: Dividing the number of molecules in the sample by Avogadro's number.
The Avogadro’s number is the number of atoms in 12 grams of the isotope carbon-12 (¹²C).
Na is Avogadro number or Avogadro constant (the number of particles, in this example carbon, that are contained in the amount of substance given by one mole).
The Avogadro number has value 6.022·10²³ 1/mol in the International System of Units; Na = 6.022·10²³ 1/mol.
For example:
N(Ba) = 2.62·10²³; number of atoms of barium.
n(Ba) = N(Ba) ÷ Na.
n(Ba) = 1.3·10²⁴ ÷ 6.022·10²³ 1/mol.
n(Ba) = 2.158 mol; amount of substance of barium.
Stability of atoms is determined by neutron:proton ratio. This n/p ratio is 1:1 for elements below atomic number 20. Hope this helps.