A condensed rapid review pass over the highest yield MCAT general chemistry facts for final week review.
39 cards · basic cards · AI-written, checked twice. Edit anything.
- What does the atomic number of an element represent?
- The number of protons in its nucleus.
- What is the mass number of an atom?
- The total number of protons plus neutrons in the nucleus.
- What term describes atoms of the same element with different numbers of neutrons?
- Isotopes
- What is the approximate value of Avogadro's number?
- 6.022 x 10^23 per mole
- What are valence electrons?
- The electrons in an atom's outermost energy shell.
- What does the Aufbau principle state?
- Electrons fill the lowest energy orbitals available before filling higher ones.
- What does the Pauli exclusion principle state?
- No two electrons in the same atom can share all four quantum numbers.
- What does Hund's rule state?
- Electrons occupy degenerate orbitals singly before any orbital is doubly occupied.
- How does atomic radius change moving left to right across a period?
- It decreases.
- How does atomic radius change moving down a group?
- It increases.
- How does first ionization energy generally change moving left to right across a period?
- It increases.
- Which element has the highest electronegativity on the periodic table?
- Fluorine
- What type of bond forms when electrons are transferred from a metal to a nonmetal?
- An ionic bond
- What type of bond forms when two atoms share a pair of electrons?
- A covalent bond
- What does VSEPR theory use to predict molecular geometry?
- Minimizing repulsion between electron pairs around a central atom.