Chemistry Midterm Review 1

Where do you find the transition metals on the periodic table?

• The central block
• Left and right hand side blocks
• At the top
• Near the bottom

Where do you find the metals and non-metals in the periodic table?

• Metals on the right, non-metals on the left
• Non-metals in the middle surrounded by the metals
• Metals in the middle surrounded by the non-metals
• Metals on the left, non-metals on the right

What are the elements of this Group 18 called and why are they unreactive?

• Noble solids and they have 8 electrons in their outer energy level (shell)
• Noble liquids and they have 8 electrons in their outer energy level (shell) except helium which has 2)h has 2
• Noble gasses and they have a complete (full) outer energy level (shell)
• Noble elements and they have an empty outer energy level (shell)

The elements are arranged in groups and periods. What is a period on the table?

• A vertical column
• A horizontal row
• A diagonal row
• A block of columns

The atomic number of an element is 11 and its mass number is 23. Pick the correct combination of protons, neutrons and electrons.

• p=12, n=12, e=11
• p=11, n=11, e=12
• p=12, n=11, e=11
• p=11, n=12, e=11

The mass number of an element tells us...

• the number of protons in the nucleus
• the number of protons plus electrons
• the number of neutrons plus electrons
• the number of neutrons plus protons

Which of the following is a formula for a compound formed from sodium (Na) and oxygen (O)?

• A. NaO
• B. NaO₂
• C. Na₂O
• D. Na₂O₃

When do you use Roman numerals if you are naming compounds?

• when naming polar covalent molecules
• when naming ionic compounds with a transition metal
• when using polyatomic ions
• when naming binary compounds

How is a cation formed from a neutral atom?

• cations form by sharing electrons
• cations form by donating electrons
• cations form by taking electrons
• cations form by donating protons

How is an anion formed from a neutral atom?

• anions form by sharing electrons
• anions form by donating electrons
• anions form by taking electrons
• anions form by taking protons