Prompt First, watch the following video about types of graphs and the parts of a graph.
https://youtu. be/9BkbYeTC6Mo
Answer the following questions:
1. When do you use a line graph?
2. When do you use a bar graph?
3. What is an indepedent variable and what axis do you graph it on?
4. What is a dependent variable and what axis do you graph it on?

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

shield volcanos are angry and get mad over the smallest things so much that there heads erupt   pahoehoe and a'a lava. a composite volcano is the poller opposite of a shield volcano. its   peaceful thing and knows how to control its emotions.      

a corroding iron, if that's one of your choices

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.