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What element in the periodic table comes last alphabetically?
The element that comes last alphabetically in the periodic table is Zirconium (Zr).
What is the first element in the periodic table?
Hydrogen: represented on the table with by the symbol HIt has the lightest atomic weight of all elements at 1.00794Hydrogen is the most abundant chemical element, constituting roughly 75% of the universe's elemental mass.
What was Seaborg's last major change to the Periodic Table?
Seaborg's last major change to the Periodic Table was the actinide concept. He proposed placing the actinide series below the lanthanide series to create the extended table and highlight the similarities between the two series.
An element that has the electron configuration Ne3s23p5 is in which period?
An element with the electron configuration Ne3s^23p^5 is in period 3 of the periodic table. The electron configuration indicates that the element has 3 energy levels, with the last electron being in the 3p subshell.
What is each period of the table begins on the left with a?
All periods begin with an alkali metal, excepting the first which begin with hydrogen..
What is the characteristic of last element in each period of periodic table?
The last element in each period is a noble element. It is non-reactive.
What element in the periodic table comes last alphabetically?
The element that comes last alphabetically in the periodic table is Zirconium (Zr).
In alphabetic order what is the last element on the periodic table?
Zirconium - Zr
Is radon a compound element or mixture?
element, last of the nobel gasses on the periodic table of elements
What is the highest numbered element in the periodic table to be natural?
Plutonium (atomic number 94) is the last element in the periodic table that may be found naturally, in trace amounts.
What group does argon belong to on the periodic table?
Argon (Ar, element number 18) is the last element in the third period of the periodic table.
What is the name of the last element on the periodic table that was not created byscientists in a laboratory?
Helium.
Which element on the periodic table have the lowest electrongativty?
The last member of alkali metals the Francium.
Where is a complete periodic table?
A complete periodic table arranged in periods and groups. The symbol of element and atomic number are mentioned.
What is the last element in the nitrogen group?
The heaviest radioactively stable element in the same column of a wide form periodic table as nitrogen is bismuth.
Have you found all of the possible elements?
The last element for which there are claims of discovery is Uus, element 117. That completes the 118 elements on the periodic table.
What is the valency of the last element in the 3rd group of modern periodic table?
The last element in the 3rd group of the modern periodic table is gallium, with the symbol Ga. Gallium has a valency of +3, meaning it tends to lose three electrons to achieve a stable electron configuration.
