Average Atomic Mass
In addition to the mass of the isotopes, this must be known to determine the overall average atomic mass of an element on the periodic table
What is the percent abundance (or abundance) of the isotopes?
The two main regions of the atom
What are nucleus and electron cloud?
The unreactive family on the periodic table due to their full number of valence electrons
What are the Noble Gases?
My symbol is O and my atomic mass is 16.
What is oxygen?
The average atomic mass (to three sig figs) of a fictitious element, Blackboardium, which has two naturally occurring isotopes. 301Bb has a mass of 301 amu and is 1% abundant. 304Bb has a mass of 304 amu and is 99% abundant.
What is 304 amu?
All of the mass of an atom is concentrated here
What is the nucleus?
The family that is known for being the most reactive metals
What are the Alkali Metals?
Organization of the periodic table lists elements that have the smallest number of these to the highest number of these subatomic particles
What are protons?
I have 16 electrons whizzing through my electron cloud in my neutral form
What is sulfur?
The average atomic mass (to three sig figs) of a fictitious element, Elementium, which has two naturally occurring isotopes. 406El has a mass of 406 amu and is 50% abundant. 410El has a mass of 410 amu and is 50% abundant.
What is 408 amu?
The subatomic particles that are found in the nucleus of an atom
What are protons and neutrons?
Contains two common metals, magnesium and calcium
What is the Alkaline Earth Metals?
There are 18 of these on the Periodic Table
What are groups or families?
With an atomic mass of 39 and 20 neutrons in my nucleus, I am a very reactive metal.
What is potassium?
The average atomic mass (to three sig figs) of a fictitious element, Adelsonium, which has two naturally occurring isotopes. 620Ad has a mass of 620 amu and is 75% abundant. 632Ad has a mass of 632 amu.
What is 623 amu?
The two subatomic particles that are always found in the same number in a neutral atom
What are protons and electrons?
These metals are known for not being as reactive as groups one and two and many require roman numerals when named in an ionic compound due to their multiple cation charges
What are transition elements?
Elements in the same family exhibit similar chemical behavior due to the same number of these particular subatomic particles
What are valence electrons?
I am the head of my family in the Halogens, and an important element in helping fight tooth decay.
What is flourine?
The abundances of a fictitious element Portergaudium that has an average atomic mass of 187 amu with isotopic masses of 180 amu for 180Pg and 190 amu for 190Pg
What is 70% 190Pg and 30% 180Pg?
The subatomic particle always found in excess of the number of protons in an anion
What is the electron?
Elements of this family tend to gain two electrons forming a -2 charge when bonding ionically with metals
What are the Chalcogens?
Credited with developing the first Periodic Table of the Elements, he arranged the elements in order of increasing atomic mass.
Who is Dmitri Mendeleev?
My properties are so unique I have my own separate space on the Periodic Table. I was also the end of the Hindenburg.
What is hydrogen?