Exam 1: Portable Electronics: the Periodic Table in the Palm of Your Hand

A sample of silicon rejected for use in an electronic circuit has an impurity of boron at a level of 3 parts per trillion.What is the fraction of boron atoms in the silicon sample as written in scientific notation?

What is the answer to the following mathematical operation? 1.42 + 9.4 x 2.854

Which substance is an element?

The majority of new smartphones being released have displays that are at least 5 inches in size.What is this size in centimeters? (There are 2.54 cm in one inch. )

Which corresponds to the composition of the ion typically formed by fluorine?

Which square(s) contain(s) only an element?

What type of material is defined as having a well-ordered atomic structure?

What is the term used to describe a material that allows light to mostly pass through it?

Which one of the following compounds is considered to be a molecular compound?

Which one of the following is a subatomic particle located in the center of the atom and has a positive charge?

A recent set of advertisements has a picture of an aluminum can with an aluminum-frame bicycle,along with a hypothetical quote from the can that reads: "I want to be a bike.Recycle me." The analysis of the life cycle of an item starting with its raw materials and ending with the used item becoming the raw material for new products is called

Which one of these materials is most likely to conduct heat?

A substance that can be broken down into two or more simpler substances by chemical methods is called a(n)

The quantity 8.7 × 10⁵ g expressed in standard decimal notation.

On a Periodic Table,the columns of elements with similar properties are

One of the lightest smartphones on the market today weighs 113 g.To protect your phone,you may want to use a screen protector,which weighs 27.2 g,and a heavy duty phone case,which weighs 114 g.What is the total weight of the phone,screen protector,and case?

Which differentiates a compound from a mixture of two or more elements?

Which symbol(s) represent(s) elements in the noble gas family?

The most numerous of the elements are the

Which squares contain mixtures?