Select the number of valence electrons for fluorine.
2 answers:
Answer : The number of valence electrons in fluorine are, seven.
Explanation :
As we know that the fluorine is a non-metal element that belongs to the group 17 and period 2. The symbol of fluorine element is, (F) and the atomic number of fluorine is, 9.
The electronic configuration of fluorine is,
Electronic configuration : It is defined as the distribution of electrons of an atom in an atomic orbitals.
From the electronic configuration, we conclude that the number of valence electrons present in fluorine is, seven (7).
Hence, the number of valence electrons in fluorine are, seven.
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Answer:
1.242 g/mL
Explanation:
Step 1: Given data
Mass of the empty container (m₁): 80.21 g
Mass of the filled container (m₂): 105.22 g
Volume of the unknown liquid (V): 20.14 mL
Step 2: Calculate the mass of the liquid
The mass of the liquid is equal to the difference between the mass of the filled container and the mass of the empty container.
Step 3: Calculate the density of the unknown liquid
The density of the liquid is equal to its mass divided by its volume.