Untitled Deck Flashcards
How do atoms become ions?
Atoms become ions when they gain or lose electrons. Gaining electrons creates a negative charge (anion), and losing electrons creates a positive charge (cation).
What is the difference between a Cation and an Anion?
A cation is a positively charged ion, and an anion is a negatively charged ion.
What is a period in the periodic table?
A period is a horizontal row on the periodic table.
What is fission and fusion?
Fission splits a larger atom into smaller atoms. Fusion combines smaller atoms to form a larger one.
How does Schrödinger’s quantum model describe the atom?
Schrödinger’s model describes electrons as existing in probability clouds (orbitals) rather than fixed orbits, with wave-like properties.
What is the Rutherford model of the atom?
Rutherford’s model states that electrons surround the nucleus and revolve around it in circular paths (orbits).
What are the four regions of the periodic table and their locations?
Region 1: Alkali/Alkaline Earth Metals (Groups 1-2, leftmost)
Region 2: Transition Metals (Groups 3-12, middle)
Region 3: Metalloids (diagonal line between metals and nonmetals)
Region 4: Nonmetals (rightmost)
Where are the largest elements found on the periodic table?
The largest elements are found in the bottom left corner of the periodic table.
How do valence electrons relate to group numbers?
The number of valence electrons equals the group number of the element.
What is the typical charge of elements in each group on the periodic table?
Alkali Metals: +1
Alkaline Earth Metals: +2
Transition Metals: Varies
Nonmetals (Group 15): -3
Nonmetals (Group 16): -2
Halogens: -1
Noble Gases: 0
What are the groups and families on the periodic table?
Groups 1-18 include alkali metals, alkaline earth metals, transition metals, metalloids, halogens, noble gases, and more.
What is the danger/penetrating ability of alpha particles?
Alpha particles have low penetrating ability and can be stopped by paper.
What is the danger/penetrating ability of gamma particles?
Gamma particles have high penetrating ability and can be stopped by lead.
What is the danger/penetrating ability of beta particles?
Beta particles have medium penetrating ability and can be stopped by metal.
What does a gas particle picture look like?
Gas particles are spread out and move freely.
What does a liquid particle picture look like?
Liquid particles are close together but can move past each other.