Periodic Table and Atomic Structure

The video tutorial by Professor Ariane Lopes introduces students to chemical elements and the periodic table. It explains the difference between biotic and abiotic components, the structure of atoms, and the significance of atomic numbers. The tutorial also covers how elements are organized in the periodic table, highlighting the natural and artificial elements and their properties.

Who began the study of elements that led to the creation of the periodic table?

• Isaac Newton

• Marie Curie

• Dmitri Mendeleev

• Albert Einstein

What are biotic elements?

• Non-living components

• Elements that are dead

• Elements that have never been alive

• Living organisms

Which of the following is an example of an abiotic element?

• Water

• Plants

• Animals

• Humans

What are atoms composed of?

• Only electrons

• Protons, neutrons, and electrons

• Only neutrons

• Only protons

Which particle in an atom has a positive charge?

• Neutron

• Electron

• Proton

• Nucleus

What does the atomic number (Z) represent?

• Number of atoms

• Number of protons

• Number of electrons

• Number of neutrons

Which element has an atomic number of 1?

• Oxygen

• Nitrogen

• Hydrogen

• Carbon

How many elements are currently recognized in the periodic table?

• 118

• 100

• 150

• 92

How are elements arranged in the periodic table?

• By date of discovery

• By atomic mass

• By atomic number

• By alphabetical order

What is the symbol for the element with atomic number 8?

• H

• C

• O

• N