Semester 1 Midterm

What is the atomic mass of Lithium?

• 10
• 14
• 3
• 6.94

How do you find the number of neutrons for an element?

• Subtract the atomic number from the atomic mass.
• Add the atomic number and the atomic mass.
• Divide the atomic mass by the atomic number.
• Multiply the atomic mass by the atomic number.

Elements with similar chemical properties are in a

• period
• group
• table
• class

Elements that are gaseous or brittle solids and are poor conductors are called

• metalloids
• metals
• nonmetals
• transitionary

Elements that are shiny and are good conductors of both heat and electricity are called

• metalloids
• nonmetals
• gases
• metals

Elements that have properties of both metals and nonmetals are called

• metalloids
• gases
• near metals
• metallics

The periodic table is arranged by order of

• atomic number
• discovery
• element type
• atomic mass

How many total groups are in the periodic table?

• 7
• 9
• 18
• 20

How many total periods are in the periodic table?

• 7
• 9
• 18
• 20

How many electrons does a neutral Carbon atom have?

• 6
• 12
• 16
• 24