BARU
Ukuran huruf
Lembar kerjaDevelopment of Periodic Table
Total soal: 9
Worksheet time: 5mins
What do you call to an electron that is located in the outermost shell of the atom, which can be transferred or shared?
Valence electron
Valence shell
Outer electron
Electron configuration
Who called his observation as the “law of triads”?
John Newlands
Antoine Lavoisier
Johann Dobereiner
What group of elements that are extremely reactive and can never be found in nature in their pure form?
Alkali Metals
Alkaline Earth Metals
Transition Metals
Who used Law of Octave is arranging the elements of the periodic table?
Dmitri Mendeleev
Alexander Newlands
Lothar Meyer
Who finally arranged the periodic table of the elements using atomic mass?
Henry Moseley
Glenn Seaborg
Dmitri Mendeleev
What group of elements that are slightly less reactive than the alkali metals?
Alkaline Earth Metals
Transitions Metals
Boron Group
What do you call to the classifications of elements in a horizontal arrangement?
group
period
transition
What do you call to the classifications of elements from 57 to 71?
Lanthanides
Actinides
Metalloids
What do you call to the classifications of elements from 89 to 103?
Lanthanides
Actinides
Metalloids
