When writing the electron configuration for Boron (5 electrons) we start filling first the first energy level (the 1s) before the second energy level (before the 2s). Name the rule that says this is so and EXPLAIN THAT RULE IN YOUR OWN
WORDS.

Which is true of transition metals when moving from left to right on the periodic table? the d sublevels are not filled across the period. the cation radii become larger across the period. atomic radii increase slightly and then start to decrease. atomic radii decrease slightly and then start to increase. o

It is important to wear proper protective equipment in lab even when not actively performing experiments because accidents can affect any researcher, even one not working on an experiment. select the best answer from the choices provided

Acamcorder has a power rating of 17 watts. if the output voltage from its battery is 7 volts, what current does it use?units: