BJU Chemistry Test Chapter 6

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

(The law of octaves is a generalization that states that when chemical elements are arranged in order of increasing atomic weight, every eighth element has similar properties to the first)

• Henry Cavendish

• John Newlands

• Henery Moseley

• Linus Pauling

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

• Henry Moseley

• John Newlands

• Dimitri Mendeleev

• Antoine Lavoisier

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

• Dimitri Medndeleev

• John Dalton

• Henry Moseley

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

• The have a similar surface area

• They have a similar electrical charge

• They have a similar nuclear construction

• They have a similar electron configuration

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What is the only metal that is liquid at room temperature?

• lithium

• mercury

• magnesium

• barium

Atomic radius is defined as the distance from the center of the atoms nucleus to

• it's innermost electron

• it's outermost electron (Valence Electron)

• its central electron

• the outermost portion of the nucleus

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Which has a smaller atomic radius, Calcium or Chlorine?

• Calcium

• Chlorine

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Which property measures the energy required to remove an outermost electron?

• electronegativity

• ionic size

• ionization energy

• electron affinity

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A larger atomic radius means

• a smaller ionization energy

• a larger ionization energy

• stays the same

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A smaller atomic radius means a

• smaller ionization energy

• larger ionization energy