Atomic Structure
This subatomic particle determines the identity of an element and decides where it lives on the periodic table.
What is a proton?
This number on the periodic table tells you how many protons are in the nucleus of an atom.
What is the atomic number?
This trend describes how strongly an atom pulls electrons toward itself in a bond.
What is electronegativity?
This type of bond forms when electrons are transferred from one atom to another.
What is an ionic bond?
These numbers are placed in front of chemical formulas to balance equations.
What are coefficients?
This NEGATIVELY charged particle is responsible for chemical bonding and is found in energy levels surrounding the nucleus.
What is an electron?
Elements in the same group tend to react similarly because they share this important feature.
What is the number of valence electrons?
Which has the larger atomic radius: potassium or fluorine, AND why?
What is potassium, because atomic radius increases down and to the left?
This type of bond occurs when atoms share electrons, usually between nonmetals.
What is a covalent bond?
This law states that atoms cannot be created or destroyed during a chemical reaction.
What is the Law of Conservation of Mass?
An atom that has the same number of protons but a different number of neutrons compared to another atom of the same element is called this.
What is an isotope?
These elements are found on the far right of the periodic table and are known for being extremely unreactive.
What are noble gases?
As you move left to right across a period, atomic radius decreases for this reason.
What is increasing nuclear charge pulling electrons closer?
This bonding model explains why metals are good conductors due to freely moving electrons.
What is metallic bonding?
Is this equation balanced? N₂ + H₂ → NH₃
What is no?
An atom of magnesium loses two electrons. Identify the type of particle formed AND its charge.
What is a 2+ cation?
An element is shiny, malleable, conducts electricity, and loses electrons easily. Where is it most likely found on the periodic table?
What is the left side (metal region) of the periodic table?
This trend measures how much energy is required to remove an electron from a neutral atom.
What is ionization energy?
Why do ionic compounds form crystal lattice structures instead of molecules?
What is electrostatic attraction between oppositely charged ions?
Balance the following equation: N₂ + H₂ → NH₃
What is N₂ + 3H₂ → 2NH₃?
Two atoms have the same mass number but are different elements. What must be different about their atomic structure?
What is the number of protons?
This zig-zag line on the periodic table separates metals from nonmetals and includes elements with mixed properties.
What is the metalloid staircase?
Explain why ionization energy increases as you move up and to the right on the periodic table.
What is stronger nuclear attraction and fewer energy levels?
Using electronegativity, explain why a bond between sodium and chlorine is ionic.
What is a large electronegativity difference causing electron transfer?
Explain why changing subscripts instead of coefficients breaks chemical laws.
What is because it changes the identity of the substances involved?