Answer:
Experimental group
Explanation:
i hopes this helps let me know if im wrong:)
It has 6 electrons, and 4 valence electrons
Answer:
Perflutren
Explanation:
Perflutren is a fluorinated hydrocarbon and gaseous substance used as an imaging contrast agent.
Answer:
nitrogen
Explanation:
as the group number increases, the atomic radius decreases
Answer:
1. First one is true : as per periodic table down the group , the elements has increasing order of shell & with that the London dispersion forces brings the inter-molecules close together and bromine converted into liquid .
2. second one is False because carbon-carbon bonds are not weak bonds they form mutual covalent bonds which are stronger bonds and cannot be easily disrupted .
3. A single carbon atom has the valency of 4 so it can be bonded with four hydrogen atom at the same time .
Explanation:
