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The Ultimate Periodic Table Quiz

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Questions and Answers

Which term refers to the vertical columns in the periodic table?

Elements

Groups (correct)

Periods

Isotopes

What is the atomic number of an element?

The number of protons (correct)

The number of electrons

The sum of protons and neutrons

The average of masses of all the isotopes

Who designed the periodic table and first formulated the Periodic Law?

Dmitri Mendeleev (correct)

Mary Grace G. Bornales

John Newlands

Dmitri Ivanovich Mendeleev

What is the mass number of an element?

The sum of protons and neutrons Signup and view all the answers

Who discovered the atomic number based on the properties and atomic weight?

John Newlands Signup and view all the answers

Which term refers to the horizontal rows in the periodic table?

Period Signup and view all the answers

What is the atomic mass of an element?

The average of the masses of all the isotopes of an element Signup and view all the answers

Who discovered the Law of Octave?

John Newlands Signup and view all the answers

When was the first periodic table created and how many elements were discovered at that time?

1863, 56 elements Signup and view all the answers

What is the atomic number of an element?

The number of protons in an element Signup and view all the answers

Calculate the molecular weight of CO2.

43.98 g/mole Signup and view all the answers

Calculate the molecular weight for Al(OH)3.

77.95 g/mole Signup and view all the answers

Calculate the molecular weight for NaCl.

58.44 g/mole Signup and view all the answers

A chemist has a jar containing 388.2 g of iron filings. How many moles of iron does the jar contain?

6.95 mole Signup and view all the answers

A chemist needs 22g of phenol (C6H5OH) for an experiment. How many moles of phenol is this?

2.47 mole Signup and view all the answers

The Ultimate Periodic Table Quiz

Choose a study mode

Podcast

Questions and Answers

Which term refers to the vertical columns in the periodic table?

What is the atomic number of an element?

Who designed the periodic table and first formulated the Periodic Law?

What is the mass number of an element?

Who discovered the atomic number based on the properties and atomic weight?

Which term refers to the horizontal rows in the periodic table?

What is the atomic mass of an element?

Who discovered the Law of Octave?

When was the first periodic table created and how many elements were discovered at that time?

What is the atomic number of an element?

Calculate the molecular weight of CO2.

Calculate the molecular weight for Al(OH)3.

Calculate the molecular weight for NaCl.

A chemist has a jar containing 388.2 g of iron filings. How many moles of iron does the jar contain?

A chemist needs 22g of phenol (C6H5OH) for an experiment. How many moles of phenol is this?

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