Atomic Structure Review

Who was the first to name the atom?

• Democritus

• John Dalton

• Dmitri Mendeleev

• JJ Thomson

Which model of the atom proposed that it is a solid sphere that can't get any smaller?

• Democritus' model

• John Dalton's model

• JJ Thomson's model

• Ernest Rutherford's model

Who developed the first periodic table of elements?

• Democritus

• John Dalton

• Dmitri Mendeleev

• JJ Thomson

Which model of the atom proposed that it is a positively charged sphere with negative particles embedded throughout?

• Democritus' model

• John Dalton's model

• JJ Thomson's model

• Ernest Rutherford's model

Who conducted the gold foil experiment and proposed the nuclear model of the atom?

• Democritus

• John Dalton

• Dmitri Mendeleev

• Ernest Rutherford

Who discovered that the number of protons is unique to each element and arranged the periodic table based on atomic number?

• Henry Moseley

• Niels Bohr

• Schrodinger

• Heisenberg

Which model of the atom proposed that electrons travel in fixed orbits around the positively charged nucleus?

• John Dalton's model

• JJ Thomson's model

• Niels Bohr's model

• Schrodinger and Heisenberg's model

What is the dense center of an atom called?

• Nucleus

• Electron cloud

• Proton

• Neutron

Tags

NGSS.MS-PS1-1

Which group of elements on the periodic table are the most reactive metals?

• Alkali metals

• Alkaline earth metals

• Halogens

• Noble gases

Which group of elements on the periodic table are nonreactive due to already being chemically stable?

• Alkali metals

• Alkaline earth metals

• Halogens

• Noble gases