Summative Test II Third Quarter

What do you call the elements that are “along the ladder” in the periodic table?

• Gases

• Semimetals

• Metals

• Nonmetals

Which among the following pairs of scientists and contributions to the development of the periodic table is a MISMATCH?

• Johann Dobereiner: Triads of Elements

• John Newlands: Law of Octaves

• Dmitri Mendeleev: Periodic Law

• Henry Moseley: Telluric Helix

Which of the following statements describes the Modern Periodic Law?

• Elements with similar properties would appear at periodic intervals

• Elements are arranged based on increasing atomic mass

• Elements are arranged in the order of increasing atomic number

• Elements are arranged in the order of increasing atomic number and elements are arranged based on increasing atomic mass

Who devised the periodic table of elements being used now and made further experiments that led to the formulation of the modern periodic law?

• Dmitri Mendeleev

• John Newlands

• Henry Moseley

• Johann Dobereiner

Elements that belong to the same family in the periodic table have the same...

• Atomic Number

• Atomic Mass

• Number of Energy Levels

• Number of Valence Electrons

Elements found in group 3 to group 12 constitutes the d-block in the periodic table and are referred to as...

• Transition Elements

• Inner Transition Elements

• Lanthanides and Actinides

• Representative Elements

In which group of elements do the Lanthanides and Actinides belong to?

• s-block

• p-block

• d-block

• f-block

Periodic trends are specific patterns that are present in the periodic table that arise from the arrangement of elements in the periodic table and allow chemists to reliably predict an element’s properties. Which of the following periodic trends is not correct?

• Nonmetallic character increases from the bottom to the top of the periodic table and increases from left to right

• Reactions get more vigorous as you go down the group and tend to decrease across a period

• The atomic number increases from top to the bottom of the periodic table and increases from right to left across a period

• Metallic character increases as you go from top to bottom of the periodic table and increases from right to left across a period

Which of the following families of elements include the most active metals in the periodic table?

• Group 1, Alkali Metals

• Group 17, Halogens

• Group 18, Noble Gases

• Group 2, Alkaline Earth Metals

Which of the following elements is commonly found in the toothpaste you use to brush your teeth?

• Flourine

• Tin

• Mercury

• Aluminum