Atoms and the Periodic Table Review

Which atomic particle has a negative electric charge?

• Electron

• Proton

• Neutron

• Positron

Determine the mass number and atomic number of a chlorine atom that has 17 protons and 18 neutrons.

• Mass number: 35, Atomic number: 17

• Mass number: 36, Atomic number: 17

• Mass number: 34, Atomic number: 16

• Mass number: 35, Atomic number: 18

Elements are organized in the periodic table by increasing atomic ______.

• Number

• Mass

• Weight

• Size

If the atomic number of an element is 5 and the mass number is 10, how do you determine the number of neutrons?

• Subtract the atomic number from the mass number: 5

• Add the atomic number to the mass number: 15

• Multiply the atomic number by the mass number: 50

• Divide the mass number by the atomic number: 2

What particles are found in the nucleus of an atom?

• Protons and neutrons

• Electrons and protons

• Neutrons and electrons

• Protons and electrons

What elements are represented by the following symbols? Au-____, Hg-____, and Fe-____.

• Gold, Mercury, Iron

• Silver, Lead, Copper

• Platinum, Tin, Zinc

• Aluminum, Nickel, Cobalt

The first periodic table based on atomic mass was devised by ______.

• Dmitri Mendeleev

• John Dalton

• Henry Moseley

• J.J. Thomson

Identify the three particles that make up an atom along with their charges. ______ ( ), ______ ( ), and ______ ( ).

• Proton (+), Neutron (0), Electron (-)

• Photon (0), Neutrino (0), Positron (+)

• Quark (+), Gluon (0), Lepton (-)

• Meson (+), Baryon (0), Fermion (-)

Each energy level of an atom has a maximum number of ______ it can hold.

• Electrons

• Protons

• Neutrons

• Photons

List the chemical symbols for the elements aluminum, zinc, and copper. ___, ____, and ___.

• Al, Zn, Cu

• Ag, Au, Pt

• Fe, Ni, Co

• Pb, Sn, Hg