Answer:
sorry I don't speak that language
Answer:
A. Na+ OH-
Explanation:
positive and negative ions form bonds because positive and negative attract
Umm tissues , because it is caused by receptors .
Answer:
Explanation:
Melting and boiling point variations are not clear (do not have uniform pattern) in periodic table. But we can see, some elements have higher melting and boiling points and some have less. Here we study melting and boiling points of s, p, d blocks elements. IVAth group elements (C,Si) show high melting and boiling points because they have covalent gigantic lattice structures.
