Chemical Bonding
What is a covalent bond?
This type of bond forms when two atoms share electrons.
What is the number of protons?
The periodic table is arranged by increasing atomic number, which tells you this.
What are neutrons?
Answer: Isotopes are atoms of the same element with different numbers of these.
What is balancing a chemical equation?
This is the process of making sure that the number of atoms on both sides of a chemical equation are equal.
What is Avogadro's number?
This is the number of particles in one mole of a substance, approximately 6.022×10236.022 \times 10^{23}6.022×1023.
What is an ionic bond?
This bond occurs between a metal and a non-metal, where electrons are transferred.
What is chemical properties?
Elements in the same group of the periodic table have similar this.
What is deuterium?
This isotope of hydrogen, commonly known as "heavy hydrogen," has one proton and one neutron.
What is 2?
In the reaction 2H₂ + O₂ → 2H₂O, the coefficient "2" in front of H₂ indicates that this many molecules of hydrogen gas are involved.
What is the molar mass?
The amount of substance in one mole of any substance, in terms of grams, is equal to its atomic mass or molar mass.
What is a chemical bond?
The force that holds the atoms together in a molecule is known as this.
What are periods?
These are the horizontal rows of the periodic table.
What is radiocarbon dating?
Carbon-14 is an isotope of carbon commonly used in this scientific process to date ancient artifacts.
What is the Law of Conservation of Mass?
This law states that mass is conserved in a chemical reaction, meaning the total mass of the reactants equals the total mass of the products.
What is carbon (C)?
If you have 12 grams of this element, you have exactly 1 mole of atoms.
What is a nonpolar covalent bond?
This type of bond occurs when electrons are shared equally between atoms, often seen in molecules of identical elements.
What is the noble gases block?
This block of the periodic table includes elements that are characterized by having a full outer electron shell.
What is neutrons?
The difference in mass between isotopes of an element is mainly due to the difference in this subatomic particle.
What are molecules or moles?
In balancing equations, the coefficients in front of chemical formulas represent the number of these.
What is mass?
The mole concept allows chemists to convert between moles and this quantity, which is related to the amount of substance.
What is metallic bonding?
This is the type of bonding found in metals where electrons are delocalized and move freely throughout the metal structure.
What is uranium?
This element, with the atomic number 92, is the heaviest naturally occurring element in the periodic table.
What is Uranium-235?
This isotope of uranium is fissile and used in nuclear reactors and weapons.
What is a synthesis reaction?
In the equation 4Fe + 3O₂ → 2Fe₂O₃, this is the type of reaction that occurs.
What is 5 moles?
A sample contains 3.01×10243.01 \times 10^{24}3.01×1024 molecules of a substance. How many moles of this substance are present?