Periodic Table/electrons and light quiz

Using Coulomb’s, what does each of the variables represent?

F= Force q= charge r= the distance

Using Coulomb’s law, what happens to the force if distance is increased?

Decreases

Using Coulomb’s law, what happens to the force if the charge increases?

Increases

In our lab dealing with reactivity, why did elements such as Iron (Fe), Copper (Cu) and Zinc (Zn) not have any real reactions, compared to Calcium (Ca) which has a strong reaction?

Farther down when going left to right it decreases

Which element is more reactive: Magnesium (Mg) or Strontium (Sr)? Why?

Strontium because when you go down the more stronger atomic radius

elements in group 1 are called

Alkalaii metals

elements in group 2 are called

Alkalia earth metals

Elements in group 3-12 are called

Transition elements

Elements in group 17 are called

Halogens

Elements in Group 18 are called

Noble gasses

If an element has a long wavelength, what can you infer about the frequency and energy level? (is it high or low) What about a short wavelength?

The longer the wave length the less frequency and energy

What are three examples of a non-metal?

Hydrogen, Helium, carbon

What is ionization energy?

energy needed to remove an electron from an atom

Which element has more ionization energy? Francium (Fr) or Lithium (Li)? Why?

Lithium because there is more electrons

What is meant by the term electronegativity?

power of an atom in a chemical bond to attract shared electron toward itself

Which element has more electronegativity? Chlorine (CI) or Barium (BA)

CI

What are two properties of metals?

Shiny and good conductors

What are two properties of metalloids?

Some metals and non-metals

What are two properties of non-metals?

Dull, can be gasses liquids or solids

What is the difference between a “ground state” and “excited state” electron?

Ground state is in the inner shell. Excited state is on the outer shell.