This scientists was the first to come up with a way to arrange the elements on the periodic table
What is Newlands
100
This best describes the general trend that atomic radius follows on the periodic table.
What is it decreases as you move across a period and increases as you move down a group
100
The amount of energy required to remove an electron from an element.
What is ionization energy
100
The most reactive non-metals on the periodic table belong to this group
What is halogens
100
A family is the same as this on the periodic table
What is vertical column
200
This British Scientist re-arranged the Periodic Table to better fit each elements reactivity, in fact our modern periodic table is based on his work
What is Mosley
200
Magnesium ion is smaller than Calcium ion for this reason
What is it has less energy levels, it is further up in its group
200
This family has the highest ionization energies.
What is noble gases
200
The reason the alkali metals are so reactive are because of these 2 properties (trends)
What is electronegativity and ionization energy
200
These elements react to form volatile oxides and they react quite violently when placed in water!
What is alkali metals
300
This property was first used to arrange the Periodic Table of the elements
What is atomic mass
300
Please arrange the following elements based on increasing ionic size: Bromide, Selenium, Chlorine, and Potassium. Please give the correct symbols and charges
What is K, Cl, Br, Se
300
As we move up a group on the periodic table the ionization energy increases for this reason
What is the electrons are closer to the nucleus
300
When looking at the periodic table, you can discover this trend in metallic character
What is increases as you move left through a period and increases as you move down a group
300
Elements that belong in a group have these particular things in common. (There are 3 things I am looking for)
What is valance electrons, charges, ending electron configurtation
400
This property is what is now used to arrange the elements on the periodic table.
What is atomic number
400
What happens in ionic radius trend that is not in the others?
What is it has a size jump
400
Who's electron is harder to take: Francium or Fluorine
What is fluorine
400
What is the name of the family that is reactive and also in group 2?
What is alkali earth metals
400
Elements in this family are most likely to gain 2 electrons to fill their valence shell.
What is oxygen group ( Group 16)
500
Several of the elements would have to be rearranged on the periodic table if it were still based on atomic mass. Give 3 examples of elements that would need to be rearranged.
What is K and Ar, Te and I, U and Np, Co and Ni,
500
This person left holes in the periodic table for undiscovered elements
What is Mendeleeve
500
Please arrange the following elements based on decreasing ionization energy: Gallium, Krypton, Calcium and Arsenic
What is Kr, As, Ga, Ca,
500
Arrange the following elements based on increasing non-metallic character: Chlorine, Oxygen, Fluorine, and Sulfur
What is S, Cl. O, F
500
Where does He belong and why?
What is
by charge= 18
valance electron= group 2
sublevels= group 2
charateristics= 18