Those Groups
What's the Charge?
What's trending?
Who are you?
How did they do that?
100
These are the most active nonmetals.
What are the halogens.
100
The charge on the sodium ion in NaCl.
What is + 1.
100
Fluorine is the highest on this attractive scale.
What is electronegativity?
100
I am larger than my single neighbor above me, and we are both fairly reactive, but it isn't really attached to my group.
What is Lithium?
100
It took a lot of work, by many people, but eventually 118 of us were found.
What are the elements?
200
These metals are so reactive, that they are never found alone in nature.
What are the alkali metals.
200
This is the charge on an oxygen ion in almost every compound.
What is - 2?
200
It is most important to know this trend, because we use it to explain all of the others.
What is atomic radius?
200
My properties are sometimes metallic, and sometimes not. Used in the electronics industry, I have an entire area named for me.
What is silicon?
200
Mendeleev used it to arrange the elements of the periodic table, even though it turned out to be wrong, it was still very useful at the time.
What is atomic mass?
300
These nonmetals were really difficult to discover, they don't react with anything.
What are the Noble Gases.
300
The halogens all tend to have this charge when they are combined in compounds with metals.
What is - 1?
300
A cation's is smaller, but an anion's is larger than the neutral atom.
What is ionic radius?
300
This is the moon Io, of Jupiter. It has not died, but this implies the element that Mr. Blumberg references in one of those jokes.
What is Iodine?
300
The whole numbers on the table, which give the number of protons.
What are atomic numbers?
400
These metals are cool because they make colored solutions when they are dissolved in water.
Why are the transition metals cool?
400
Iron has more than one possible charge, these are its charges.
What are +2 and +3?
400
This is a measure of the energy needed to remove the most loosely held electron on an atom.
What is ionization energy?
400
Originally called plumbum, I used to be used extensively in plumbing, this is why those workers are known as plumbers.
What is Lead, Pb?
400
Moseley used this to correct the periodic table that Mendeleev had produced. It is the same order that we use now.
What is atomic number?
500
Being more positive than the alkali metals, these metals also have only one possible charge.
What are the alkaline earth metals?
500
Manganese is a little special because it has one of the highest possible charges of the metal ions, this is that charge.
What is +7.
500
As atom's radii increase, their tendency is to be more like this type of element.
What is a metal?
500
When I have a +6 charge, I am particularly dangerous. Erin Brockovich made her career on me.
What is chromium?
500
The atomic number is the same as the number of these particles in the atom's nucleus.
What are protons?