11. The characteristics of a group of elements are listed in the table.

Characteristics of a group of Elements
• Solid at room temperature
• Good conductor of electricity
• Atoms have one valence electron

Which of these elements is in this group?
A. Sodium
B. Phosphorus
C. Bromine
D. Neon

Sodium

Explanation:

I dont know but its a wild guess

sodium

Explanation:

its solid at room temp, most metals are good conductor of electricity and also its in group 1A so it has one valence electron

adding or remove a gaseous reactant or product changes the concentrations. if the concentration of reactant or product is increased, the system will shift away from the side in which concentration was increased (i.e. if the concentration of reactants is increased, the system will shift toward the products. if more products are added, the system will shift to form more reactants). conversely, if the concentration of reactant or product is decreased, the system will shift toward the side in which concentration was decreased (i.e. if reactants are removed, the system will shift to form more reactants. if the concentration of products is decreased, the equilibrium will shift toward the products).

explanation: