Atomic Structure and Period Table Test Review

In the modern periodic table elements are arranged by:

• atomic mass
• atomic number
• valence electrons
• number of isotopes

Who arranged the periodic table by increasing atomic number?

• Mendeleev
• Rutherford
• Bohr
• Mosely

What was Dmitri Mendeleev's greatest contribution to the history of the periodic table?

• He arranged all of the known elements by their atomic number
• He realised that there was a pattern of reactivity which repeated every 8 elements
• He predicted the existence (and properties) of new elements
• He identified the "law of triads" which became the groups

Which of the following are found in the nucleus?

• protons and electrons

• protons ONLY

• protons and neutrons

• Electrons only

_________________________ are the rows on the periodic table while _______________________ are the columns.

• periods/ groups(families)

• groups(families)/periods

• metals/non-metals

• non-metals/metals

Which of the following elements is in (period 4 , group 2)

• Carbon

• Potassium

• Calcium

• Sodium

What element is will have the most similar physical and chemical properties to the element Lithium (Li)?

• Sodium (Na)
• Magnesium (Mg)
• Beryllium (Be)
• Calcium (Ca)

Elements which are shiny, conduct electricity and heat are called

• metal
• nonmetal
• metalloid
• nonexistent

Electronegativity is...

• how good an atom is at attracting electrons
• the ability of an atom to lose electrons
• the energy required to remove an electron from a specific atom
• how easy it is to make friends. 

Which of the following will have a larger radius than Zinc?

• Gallium
• Aluminum
• Magnesium
• Strontium