move across the membrane to the outside of the cell.
stop moving across the membrane.
continue to move across the membrane in both directions.
move across the membrane to the inside of the cell.
will continue to move across the membrane in both directions.
i hope this helps you ( c )
have a wonderful day
~hailey lee~
The correct option is D.
Substances that can conduct electricity in aqueous solutions are called electrolytes. Calcium chloride is an example of an electrolyte. Ionic compounds are usually good electrolytes, this is because they contain mobile ions, which can carry electricity round an electrical circuit. Both positive and negative ions are present in electrolytes; the positive ions comes from the metals while the negative ions comes from the non metals. These ions are able to move about when the compound is in the molten form or in aqueous solution.
B) noble gases
C) alkali earth metals
D) alkaline earth metals
The most stable because they can contain the most valence electrons in their outer shell. The correct option is B.
Thus, The group of elements on the periodic table known as noble gases, commonly referred to as inert gases, is thought to be the most stable.
They are radon (Rn), krypton (Kr), xenon (Xe), neon (Ne), helium (He), and argon (Ar). Noble gases are extremely stable and less likely to combine chemically with other elements because they contain entire valence electron shells.
Their full electron configurations, which result in low reactivity, are the cause of this stability.
Thus, The most stable because they can contain the most valence electrons in their outer shell. The correct option is B.
Learn more about Valence electrons, refer to the link:
#SPJ3
Answer:Neutrons, Electrons, and Protons
Each line represents a single bond (two electrons), and the lone pairs of electrons are shown as dots. Carbon forms single bonds with three hydrogen atoms and one bromine atom, resulting in a stable Lewis structure that satisfies the octet rule for each element and minimizes formal charges.
To draw the Lewis electron-dot diagram for bromomethane (CH3Br), follow these steps:
Determine the total number of valence electrons for each element in the molecule:
Carbon (C) has 4 valence electrons.
Hydrogen (H) has 1 valence electron.
Bromine (Br) has 7 valence electrons.
Calculate the total number of valence electrons by adding the contributions from each element:
Carbon: 4 electrons x 1 atom = 4 electrons.
Hydrogen: 1 electron x 3 atoms = 3 electrons.
Bromine: 7 electrons x 1 atom = 7 electrons.
Total = 4 + 3 + 7 = 14 electrons.
Determine the central atom. In CH3Br, carbon is the central atom.
Connect the central carbon atom to the surrounding hydrogen and bromine atoms using single bonds (each bond consists of two electrons).
Distribute the remaining valence electrons as lone pairs on the outer atoms to satisfy the octet rule. Hydrogen can only accommodate two electrons (a duet), and bromine can expand its octet.
Calculate the formal charges to ensure that the Lewis structure represents the most stable arrangement of electrons. In CH3Br, the formal charges should ideally be as close to zero as possible.
For more such question on electrons visit:
#SPJ6