Atomic Structure
What is the charge of a proton?
Positive
What type of bond involves the sharing of electrons between two atoms?
Covalent Bonds
Which group of elements is known as the noble gases?
Group 18
What ion is produced by acids when dissolved in water?
Hydrogen ions (H+)
In a chemical reaction, what is the substance that is consumed and changed?
What is the atomic number of carbon (C)?
6
What type of bond occurs between a metal and a nonmetal, involving the transfer of electrons?
Ionic Bonds
As you move from left to right across a period, what happens to the atomic radius?
It decreases
What is the pH of a neutral solution?
7
What is the general formula for a combustion reaction?
Fuel + O₂ → CO₂ + H₂O
What subatomic particle determines the identity of an element?
Proton
What is the force that holds two hydrogen atoms together in a molecule of H₂?
Covalent Bond
Which element has the highest electronegativity?
Fluorine (F)
What is the name of this base (KOH) ?
potassium hydroxide
What type of reaction occurs when two compounds react to form a single product?
synthesis reaction
What is the maximum number of electrons that can fit in the second energy level?
8
What is the name of the bond formed between two atoms of the same element, such as O₂?
What is the trend in ionization energy as you go down a group on the periodic table?
Ionization energy decreases
What is the formula for sulfuric acid?
H₂SO₄
In a double displacement reaction, what is exchanged between the reactants?
ions
Changing the number of neutrons results in a __________
isotope
What is the octet rule?
Atoms tend to form bonds in a way that results in a full outer electron shell, typically with 8 electrons.
What is the name of the elements in Group 2 of the periodic table?
Alkaline Earth Metals
What piece of equipment is used to heat substances in the lab?
Bunsen Burner
What is the name of the law that states that matter cannot be created or destroyed in a chemical reaction?
law of conservation of mass