QUIZ BEE AVERAGE

Which of the following statements is not part of Dalton's atomic theory?

• The three main particles in atoms are protons, neutrons, and electrons.

• All substances are composed of small, indivisible particles called atoms.

• The atoms of a given element are identical in every respect.

• In chemical reactions, atoms combine in simple, whole-number ratios.

According to the Rutherford model of the atom, most of the space that an atom takes up consists of

• protons

• neutrons

• nucleus

• empty space

When electricity is passed through water, a chemical reaction takes place. In this reaction

• the products are water and hydrogen peroxide.

• the products are carbon dioxide and oxygen.t

• the products are hydrogen and oxygen.

• he products are nitrogen and oxygen.

The number of electrons in an atom is the same as

• the mass number of the atom

• the number of neutrons in the atom

• the number of protons in the atom

• the difference between the mass number and atomic number

Bohr proposed that the line spectrum of an element is caused by

• electrons moving from a higher energy level back to a lower energy level.

• electrons moving from a lower energy level to a higher energy level.

• protons moving from the nucleus to one of the energy levels.

• electrons leaving the atom.

Which group in the periodic table contains the noble gases?

• 1

• 15

• 17

• 18

Elements that possess some properties of metals and some properties of nonmetals are called

• alkali metals

• metalloids

• noble gases

• heavy metals

The smallest particle of an element that is still that element is a(n)

• molecule

• compound

• atom

• chunk

Which of the following best describes the term "constellation"?

• A group of stars that travel through space together.

• A group of stars that is seen in the same part of the sky

• .A group of stars that are located near each other in space.

• A group of stars that form a shape or pattern.

The word "planet" comes from the Greek word "planetes" meaning

• constellation.

• star.

• wanderers.

• zodiac.