The Atom Review Quiz

One possible isotope of Chlorine could be an atom with

• 16+ and 18n

• 16+ and 0n

• 17+ and 18n

• 18+ and 17n

A subatomic particle whose mass is considered negligible is the

• atom

• electron

• proton

• neutron

Which of the following was NOT a conclusion of the gold foil experiment?

• most of an atoms space is empty

• atoms contain neutrons which are located in the nucleus

• all atoms contain a small , massive and dense region called a nucleus

• the nucleus is positively charged

The current periodic table is organized according to

• atomic mass

• oxidation state

• atomic radius

• atomic number

Which 2 elements of the periodic table have more similarities based on them being located in the same group?

• H and Na

• Na and Ca

• Na and Mg

• Na and K

The number of neutrons in a Ca-39 atom is

• 20

• 19

• 39

• +2

Which of the following is an example of a metal?

• C

• Al

• O

• Ne

Which of the following postulates in Daltons Atomic Theory was NOT entirely true?

• Atoms of different elements are different

• All matter consists of tiny indivisible particles called atoms

• Compounds are formed by combining different types of elements

• All atoms of the same element are identical

The atomic model which described electrons as being located in "orbits" that revolved around the + nucleus in a circular fashion is the ___________model.

• Wave mechanical

• Plum Pudding

• Planetary

• Nuclear-Rutherford

Which 2 elements have the most similar chemical and physical properties?

• He, Cl

• O, Cl

• Al, B

• Mg, Ca