True or false: as you move from left to right in a row of the periodic table, metallic properties increase.

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

What is the lowest number energy level where a d sublevel is found

Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?