Core general chemistry concepts tested on the HESI A2 Chemistry module: atomic structure, bonding, reactions, and solutions.
38 cards · basic cards · AI-written, checked twice. Edit anything.
- What is atomic number?
- The number of protons in an atom's nucleus
- What is mass number?
- The sum of protons and neutrons in an atom's nucleus
- What charge does a proton carry?
- Positive
- What charge does an electron carry?
- Negative
- What charge does a neutron carry?
- No charge (neutral)
- What are isotopes?
- Atoms of the same element with different numbers of neutrons
- What are valence electrons?
- Electrons in an atom's outermost shell that determine its bonding behavior
- What is a group on the periodic table?
- A vertical column of elements that share similar chemical properties
- What is a period on the periodic table?
- A horizontal row of elements
- What is a cation?
- A positively charged ion formed when an atom loses electrons
- What is an anion?
- A negatively charged ion formed when an atom gains electrons
- Atoms tend to gain, lose, or share electrons to achieve a full outer shell of ____ valence electrons.
- 8
- What is an ionic bond?
- A bond formed by the transfer of electrons, typically between a metal and a nonmetal
- What is a covalent bond?
- A bond formed by the sharing of electrons, typically between nonmetals
- What is a polar covalent bond?
- A covalent bond with unequal sharing of electrons due to a difference in electronegativity