Mendeleev
How many elements did Dmitri Mendeleev organize in his periodic table?
63
Which group has the most reactive metals?
Group 1A/Alkali metals
Fe²⁺ and Fe³⁺ are different iron:
Ion
What does the term conductivity describe when discussing properties of metals?
the ability of a material to transfer heat or electricity to another object
The total # of elements on the PTE?
118
What element property did Mendeleev use when organizing the elements in his periodic table?
Atomic Mass
What type of metal is Radium (Ra)?
Alkaline Earth
¹⁴₆C (Carbon -14) and ¹²₆C (Carbon -12) are examples of carbon:
Isotope
What does the term ductility describe when discussing properties of metals?
the ability of a material to be pulled out into a wire
Why are the Lanthanides and the Actinides showed below the PTE?
They are very similar