3. Elements in the same group of the periodic table have the same
FA
number of valence electrons.
B.
number of electron shells.
C. physical properties.
D. atomic size.

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

What is the solubility of substance?

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.