NEED HELP ASAP 1) Is Sulfur a metal or nonmetal?
2) Which family is Calcium in?
3) What is the Element’s name for the element that has the atomic number 72?

4) What is the atomic mass of Thallium?
5) What are all the atomic symbols for the Noble gases?



6) What are all the Element’s names in the metalloids?



7) What are all the atomic masses for the Actinides?



8)How many protons does Arsenic have?
9) How many electrons does Radium have?
10) How many neutrons does Nickel have?

Which statement describes the appearance of a temperature-vs.-time graph? a horizontal line shows that the temperature increases at a constant rate over time. a vertical line shows that the temperature decreases at a constant rate over time. horizontal lines where the temperature is constant during phase changes connect upward-sloping lines where the temperature increases. horizontal lines where the temperature increases are connected by upward-sloping lines where the temperature is constant for each phase.

Iknow #2 is d. i just need to know why

Select the correct answer. which phrase correctly describes temperature? o a. average rotational kinetic energy of the particles in an object o b. average energy of the particles in an object c. average translational kinetic energy of the particles in an object od. all energy possessed by the particles in an object