What is as you move down the periodic table the radius increases. As you move across the periodic table to the left the atomic radius increases.
100
The periodic table is arranged by increasing _____ _____.
What is atomic number.
100
What is the definition of an ion?
What is an atom with an electrical charge.
100
What group of the periodic table has 7 electrons and wants one more electron to become stable?
What is Halogens.
100
How many electrons does the "S" block hold?
What is 2 electrons
200
Which atom is most electronegative Ga, Ca, or S?
What is S (Sulfur)
200
What are the columns on the periodic table called and what do they tell us about the atoms within those columns?
What is they are called groups/families and they tell how many valence electrons the atoms have within that column.
200
Mg2+
Is a cation or anion?
Gained or lost electrons?
How many electrons did it lose/gain?
What is a cation that lost 2 electrons.
200
the atomic number tells us what about the element?
What is the number of protons it has. It also tells us the number of electrons if it is a neutral atom.
200
Write the electron configuration of K (Potassium).
What is 1S12S22P63S23P64P1
300
Define Ionization energy and explain why ionization energy decreases as you go down the periodic table.
What is Ionization energy is the amount of energy needed to remove an electron. As you go down the periodic table the energy levels increase. this means the valence electrons are farther away from the positive protons in the nucleus. These electrons cannot be held as tightly and it requires less energy to lose an electron than smaller energy levels that hold their electrons tightly.
300
Name the groups of the columns 1,2,17 and 18.
What is Alkali metals, Alkaline Earth Metals, Halogens, and Noble Gases.
300
Which of these is the largest in size? Sr+2 or Sr
Explain your answer
What is Sr2+. As you lose electrons and become positive you also lose energy levels and become smaller than the original atom. Losing electrons means you become smaller.
300
What is the octet rule?
What is the rule that all elements want to have 8 valence electrons to be stable and "happy." All elements that don't have 8 valence electrons will gain or lose electrons in order to have 8 electrons.
300
What do the 3 numbers/symbols of electron configuration stand for? ____ _____ _____
Ex. 1S1
What is the first number stands for the period the element is in. Then it is the block that is filled. lastly it is how many electrons are in that block.
400
Arrange the elements in order of increasing ionic radius.
Mg, Mg2+, Be, Be2+
What is Be2+, Be, Mg2+, Mg
400
Name 3 characteristics of metals.
What is Shiny, good conductors of heat, good conductors of electricity, strong, malleable, solid at room temperature except for Hg (Mercury).
400
What ion is F most likely to make?
What is F-1. Fluorine wants one more electron to complete its outer shell.
400
Why weren't scientists able to measure atomic radius like you would measure any other radius? How did scientists solve this problem?
What is there is no outer edge for atoms because it is in an electron cloud. Scientists measure from nucleus to nucleus of two atoms and them divide the number in half in order to find the radius.
400
Draw the blocks of the periodic table
What is I'll check it when you're done.
500
Draw all the trends for the periodic table.
What is Ill check it when you do it :)
500
The lanthanides belong in what period on the periodic table?
What is period 6
500
What element has a high electronegativity, a high ionization energy, is a nonmetal, needs one more electron to complete their outer shell and be "happy", and has a smaller atomic radius than the other elements in its group.
What is F (Fluorine).
500
Use the rubber band effect to explain why atomic radius decreases as the number of protons increases.
What is the more protons and electrons there are the more items that can attract and pull tight to together and make the radius smaller. The less protons and electrons there are the less tight the protons and electrons can pull together and the bigger the radius becomes.