Which element has the same number of valence electrons as bromine (Cl)?
Chlorine (Cl) has the same number of valence electrons as bromine (Br). Both chlorine and bromine belong to Group 17 of the periodic table, also known as the halogens, and have 7 valence electrons.
Which element has the same number of valence electrons as bromine (Cl)?
My apologies for the confusion in the previous response. The correct answer is chlorine (Cl). Both bromine (Br) and chlorine (Cl) belong to Group 17 of the periodic table, also known as the halogens, and have 7 valence electrons.
No sorry that was my bad, I accidentally pasted the questions again.
No problem! If you meant to ask which element has the same number of valence electrons as bromine (Br), the answer is iodine (I). Iodine is also a halogen and is located in Group 17 of the periodic table, just like bromine. Both bromine and iodine have 7 valence electrons.
Why are Chorine (Cl) and Flourine (F) in the same group on the periodic table?(1 point)
Responses
They have similar atomic weights.
They have similar atomic weights.
They are both colorless.
They are both colorless.
They have similar reactivity.
They have similar reactivity.
They are both metals
Neither chlorine (Cl) nor fluorine (F) are metals, so the response "They are both metals" is not correct.
The correct response is: They have similar reactivity. Chlorine and fluorine are both highly reactive elements, belonging to Group 17 of the periodic table, which is also known as the halogens. These elements have similar chemical properties and reactivity due to their shared electron configuration with 7 valence electrons.
A person chops a tree down in the forest. Is this a chemical change or a physical change? (1 point)
Responses
It is a physical change because there is no reaction.
It is a physical change because there is no reaction.
It is a chemical change because there is no phase change.
It is a chemical change because there is no phase change.
It is a chemical change because the size changes.
It is a chemical change because the size changes.
It is a physical change because the process is reversible.