1. Characteristics of Elements. Which characteristics of elements do you think are part of the
organization of the periodic table? You may select more than one answer.
(1 Ponto)
O
quantity of the element on Earth
Size of the element
Order of discovery of the element
Structure of the Element
Symbol of the Element
Reactivity of the other elements
O
Mass of a Single Atom of the Element

What color of light must blue light mix with to create white light? a. yellow b. white c. blue d. green

This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !

Consider an insulating crystal, made up of layers of atoms. what form would you expect the temperature dependence of the phonon heat capacity to approach at extremely low temperatures if the interlayer coupling is i)very strong (rigid coupling), and ii) very weak. explain.