Decoding the Periodic Table: Key Concepts and Numbers

Which element is being discussed in the video?

• Oxygen

• Lithium

• Carbon

• Hydrogen

What does the atomic number of an element indicate?

• The number of protons in an atom

• The number of neutrons in an atom

• The number of electrons in an atom

• All of the above

What is the atomic number of lithium?

• 2

• 4

• 1

• 3

What is the symbol for lithium?

• Lm

• Li

• L

• Lt

What does the electronic configuration represent?

• The atomic mass of the element

• The number of protons in the nucleus

• The arrangement of electrons in an atom

• The number of neutrons in the nucleus

Tags

NGSS.HS-PS1-1

Which model is used to write the electronic configuration?

• Bohr model

• Dalton model

• Quantum mechanical model

• Rutherford model

What is the relative atomic mass of lithium?

• 7.500

• 6.941

• 7.000

• 6.500

How is the relative atomic mass expressed?

• In grams

• In liters

• In kilograms

• In atomic mass units

What does the relative atomic mass compare?

• The mass of an atom to a proton

• The mass of an atom to an electron

• The mass of an atom to the atomic mass unit

• The mass of an atom to a neutron

What are the four important aspects you can read from the periodic table?

• Atomic number, element symbol, atomic radius, electronic configuration

• Atomic number, element symbol, electronic configuration, relative atomic mass

• Atomic number, element symbol, atomic radius, relative atomic mass

• Element symbol, atomic radius, electronic configuration, relative atomic mass