History of PTable
John Newlands arranged the elements in "________" because he noticed that every 8th element repeated certain properties
Law of Octaves or octaves
How are groups represented in the Periodic Table?
How are periods represented in the Periodic Table?
Horizontally or in rows
I am atomic Radius, what trend do I follow on the periodic table? Both vertically and horizontally?
Increase as you go down a column and decrease as I go towards noble gases
What is ionization energy?
Energy required to remove an electron from a neutral atom
Who is known as the "Father of the Periodic Table"
Dmitri Mendeleev
I am in group 2, period 3 what element am I?
Mg
I am in group 17, period 4 what element am I?
Br
I am electronegativity, what trend do I follow on the period table?
Increase as you go towards noble gases and decreases as you go down a column
I am ionization energy, what trend do I follow on the periodic table?
Increase as I go towards noble gases and decrease as I go down a column
How did Dmitri Mendeleev organize his Periodic Table?
According to their physical and chemical properties but also by increasing atomic mass
I am element Silicon, am I a metal, metalloid, or non-metal?
Metalloid
I am element Astatine, am I a metal, metalloid, or non-metal?
Metalloid
I am the most electronegative element on the periodic table, who am I?
F
My family has the highest Ionization energy, who are we?
Noble gases
How did Henry Moseley organize his periodic table?
Increasing atomic number
I belong to the most reactive metals. What family do I belong to?
Alkali Metals
I belong to the most reactive non-metals. What family do I belong to?
Halogens
Arrange the elements by order of increasing atomic radius
He, Ca, S, Fr
He, S, Ca, Fr
List the following elements in order of increasing ionization energy
Na, Al, S, Ar
Na, Al, S, Ar
Why did Mendeleevs Periodic Table become the most accepted version?
Predictive Value
I am completely unreactive and every element wants to be like me. What family do I belong to?
Noble Gases
I am part of the Alkali Earth Metal family, what type of ion do I form and what is my charge?
Cation, +2
Arrange the following elements in decreasing order of electronegativity
Li, F, Al, S
F, S, Al, Li
Arrange the elements by order of decreasing atomic radius
Mg, P, Rb, Cs
Cs, Rb, P, Mg