Chemistry Test Six

Atomic radius is defined as the distance from the center of the atom's nucleus to...

• its innermost electron

• its outermost electron

• the outermost portion of its nucleus

• its central electron

WHo arranged a number of the elements in triads on the basis of similar properties?

• Johann Dobereiner

• Linus Pauling

• Dimitri Mendeleev

• John Newlands

In general, where are the nonmetals located on the periodic table?

• the far left

• the far right

• the center

• the bottom

Who was credited with developing the first ordered table of elements?

• Henry Moseley

• John Newlands

• Dmitri Mendeleev

• Antoine Lavoisier

What newly discovered form of energy did Henry Moseley use to determine the atomic numbers of elements?

• x-rays

• gamma radiation

• alpha particles

• microwaves

Why do elements in the same group have similar physical and chemical properties?

• they have a similar surface area

• they have a similar electrical charge

• they have a similar nuclear construction

• they have a similar electron configuration

The elements that are placed along the stairstep line are the

• metals

• metalloids

• nonmetals

• artificial elements

What chemist arranged the elements according to increasing atomic masses and thereby discovered the relationship that he called the law of octaves?

• Henry Cavendish

• John Newlands

• Henry Moseley

• Linus Pauling

What name is given to group 3--12 elements?

• alkali metals

• transition metals

• alkaline-earth metals

• inner transition metals

Whose work resulted in the revision of the periodic law and the atomic number being used as the organizing factor for the elements of the periodic table?

• Lord Rayleigh

• John Dalton

• Dimitri Mendeleev

• Henry Moseley