Explanation:
It is known that neutral elements with same number of valence electrons will have same chemical properties. Therefore, elements of same group show similar chemical properties.
Thus, we can see that P and As belongs to group 15. So, they will exhibit similar chemical properties.
Both Ca and Ba belongs to group 2, hence they will exhibit similar chemical properties.
Whereas both He and Ar belongs to group 18 and they will exhibit similar chemical properties.
Explanation:
Power obtained by harnessing the energy of the suns rays
Answer:
False
Explanation:
Increase in polarity of a molecule leads to higher boiling points. The more polar a molecule is, the higher the energy required to breaks intermolecular forces of attraction hence the higher the boiling point. This is the reason why ionic compounds and compounds having polar covalent bonds in them tend to have high boiling points.
Answer:
Nucleus.
Explanation:
The sponge is a multicellular organism that consists of pores that allows water to move through the body. Sponges belong to the kingdom Animalia and phylum Porifera. Sponges can reproduce by budding. Sponges are placed in kingdom Animalia because they are unable to make their own food, made of more than one cell, and absence of cell wall.