In this case there are a few different periodic trends at XXXX. XX you XXXX at the XXXXXXXX table, XXXXXX XXXX a row XXXX add a XXXXX to the XXXX (XXXXXXX bigger). XXXXXXX, XXXXXX XX XXX right means XXX XXXX is getting XXXXXXX. When you XXXX to XXX right, in a row, the XXXXXXX XXXX XXXX XXX XXXX XXXXXXXX, pulling the XXXXX XXXXXXXXXXX closer to the XXXXXX (getting XXXXXXX). So XXXX XXXXXX XXX atom is getting XXXX matter in it, the atom XXXXXX is getting XXXXXXX since XXX XXXX XXXXXXX bound.
When dealing with XXXXXXX, XXXXX can XXX weirdly. In this case, all XX the XXXXX have the XXXX XXXXXX of totalelectrons. Look XX the table XXX XXXX spaces XXXXXXXXX XX the XXXXXX. (XXXX XXX have XXX same number XX electrons as XX ).
Thus the size XXXXXXX on how the XXXXXXX act and XXX atom with more XXXXXXX XXXX be XXXXXXX XX XXX electrons XXX more tightly XXXXX.
Note: XXX XXXXXXXX XXXXX shows the sizes XXX XXXXX that XXXX't XXXX. For XXXX, consider the steps XXXXX.