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☆☆☆☆☆trigonal pyramidal
The alkali earth metals have the smallest first ionization energies.
The negative ionic radius is larger than the neutral atomic radius
More than one polyatomic ion should be indicated in a chemical formula by putting parentheses around the atoms in the ions and then adding a subscript.
the most common is ClS2, but you also get Cl2S8
yes
6 electrons in total, 2 in each orbital
The lone pair forced bonding atoms away from itself
The lone pair repels the electrons of the adjacent bonds more so than does a bonding pair of electrons, so thus alters the molecular geometry of the molecule.
More than one polyatomic ion should be indicated in a chemical formula by putting parentheses around the atoms in the ions and then adding a subscript.
The ending of the second element is changed to -ide
