ERSC181 -Week 1 Questions with
complete solution
Which two elements are the scarcest in the crust - correct answer
✔potassium and magnesium
The elements on periodic table are arranged is a specific way. How are they
arranged - correct answer ✔by atomic number
The periodic table provides a lot of information. Which of the following is NOT
provided by the periodic table - correct answer ✔isotope number
Put the following in order of their abundance, starting with the MOST
abundant: carbon, silicon, oxygen, iron, and hydrogen - correct answer
✔oxygen, silicon, iron, hydrogen, and carbon
A silicate tetrahedron is composed of what - correct answer ✔one silicon
atom and four oxygen atoms
Of the top elements present on the Earth, which of the following is found is the
smallest quantity—calcium, iron, or magnesium - correct answer
✔magnesium
The top two most abundant elements create which common mineral group -
correct answer ✔silicates
Which type of bond involves the transfer of electrons - correct answer ✔ionic
Which element comprises about 8% of the crust - correct answer ✔aluminum
complete solution
Which two elements are the scarcest in the crust - correct answer
✔potassium and magnesium
The elements on periodic table are arranged is a specific way. How are they
arranged - correct answer ✔by atomic number
The periodic table provides a lot of information. Which of the following is NOT
provided by the periodic table - correct answer ✔isotope number
Put the following in order of their abundance, starting with the MOST
abundant: carbon, silicon, oxygen, iron, and hydrogen - correct answer
✔oxygen, silicon, iron, hydrogen, and carbon
A silicate tetrahedron is composed of what - correct answer ✔one silicon
atom and four oxygen atoms
Of the top elements present on the Earth, which of the following is found is the
smallest quantity—calcium, iron, or magnesium - correct answer
✔magnesium
The top two most abundant elements create which common mineral group -
correct answer ✔silicates
Which type of bond involves the transfer of electrons - correct answer ✔ionic
Which element comprises about 8% of the crust - correct answer ✔aluminum
