Answer: There are 4 bonding electrons and 18 non-bonding electrons.
Explanation: To determine the number of bonding and non-bonding electrons, we will use lewis dot structure for the molecule
Lewis dot structure is the structure in which the valence electrons around an atom is shown in a molecule. It also tells us about the number of bonds present between the two neighboring atoms.
Valence electrons of Fluorine = 7
Valence electrons of Xenon = 8
In
Total number of valence electrons = [(1 × 8) + (2 × 7)] = 22 electrons
From, the structure attached below, the number of bonds present = 2. Hence, the bonding electrons will be = 4 electrons
- Number of non - bonding electrons = Total valence electrons - Number of bonding electrons
Number of non-bonding electrons = 22 - 4 = 18
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The oceanic crust is about 4 miles thick.
Answer:
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Explanation:
Together, the number of protons and the number of neutrons determine an element's mass number: mass number = protons + neutrons. If you want to calculate how many neutrons an atom has, you can simply subtract the number of protons, or atomic number, from the mass number.
To calculate the atomic mass of a single atom of an element, add up the mass of protons and neutrons. Example: Find the atomic mass of an isotope of carbon that has 7 neutrons. You can see from the periodic table that carbon has an atomic number of 6, which is its number of protons.
Answer : The concentration of luminol in the solution is, 1.20 M.
Explanation : Given,
Mass of luminol = 16.0 g
Volume of solution = 75.0 mL
Molar mass of luminol = 177.16 g/mole
Molarity : It is defined as the number of moles of solute present in one liter of volume of solution.
Formula used :
Now put all the given values in this formula, we get:
Therefore, the concentration of luminol in the solution is, 1.20 M.