Understanding Atoms and Elements

This video tutorial explores the fundamental concepts of atoms, their role as the smallest building blocks of matter, and their connection to the periodic table. It delves into the formation of molecules and crystal lattices, the nature of compounds and isotopes, and the structure of subatomic particles like protons, neutrons, and electrons. The tutorial also covers the arrangement and capacity of electron shells, providing a comprehensive understanding of atomic structure.

What is the smallest building block of matter that cannot be seen with an optical microscope?

• Electron

• Atom

• Proton

• Molecule

Which element is known for forming special large molecules called buckyballs?

• Nitrogen

• Hydrogen

• Oxygen

• Carbon

What is a compound?

• A crystal lattice

• A single type of atom

• A molecule made of different types of atoms

• A group of the same atoms

Which subatomic particle is positively charged?

• Photon

• Proton

• Neutron

• Electron

What happens to an atom if it gains or loses a proton?

• It becomes an isotope

• It changes into a different element

• It becomes a molecule

• It remains the same element

What is the term for atoms of the same element with different numbers of neutrons?

• Compounds

• Molecules

• Ions

• Isotopes

How many electrons can the first shell of an atom hold?

• 8

• 2

• 32

• 18

What did Ernest Rutherford discover about the structure of the atom?

• Atoms have no nucleus

• Atoms are mostly empty space

• Atoms are made of only electrons

• Atoms are solid throughout

Which shell can hold up to 18 electrons?

• Fourth shell

• Third shell

• Second shell

• First shell

What is the maximum number of electrons the fourth shell can hold?

• 8

• 18

• 50

• 32