Atomic Structure
This subatomic particle has a positive charge.
What is a proton?
Group 18 elements are called these.
What are noble gases?
A reaction where two substances combine to form one product.
What is a synthesis reaction?
The outermost electrons of an atom.
What are valence electrons?
A bond formed when electrons are shared.
What is a covalent bond?
The center of the atom made of protons and neutrons.
What is the nucleus?
A horizontal row on the periodic table.
What is a period?
A reaction where one compound breaks apart into simpler substances.
What is a decomposition reaction?
A negatively charged subatomic particle.
What is an electron?
A bond formed between oppositely charged ions.
What is an ionic bond?
An atom with the same number of protons but different numbers of neutrons.
What is an isotope?
An element in Group 1.
What is an alkali metal?
CH₄ + 2O₂ → CO₂ + 2H₂O is this type of reaction.
What is combustion?
The type of reaction shown: 2KI + Pb(NO₃)₂ → 2KNO₃ + PbI₂
What is a double replacement reaction?
This type of compound is usually made of two nonmetals.
What is a covalent compound?
The number of protons in an atom.
What is the atomic number?
This element has the symbol Na.
What is sodium?
In this type of reaction, energy is released to the surroundings.
What is an exothermic reaction?
The total mass of products equals this in a balanced reaction.
What is the total mass of the reactants?
The correct formula for sodium sulfate. Is it Na₂SO₄ or NaSO
What is Na₂SO₄?
A bromine atom has a mass number of 83 and atomic number of 35. This is the number of neutrons.
What is 48?
Elements in the same vertical column share these.
What are chemical properties?
A chemical equation is balanced by changing these numbers.
What are coefficients?
The product formed when sodium reacts with chlorine gas.
What is sodium chloride?
The correct name for CuBr₂.Is it What is copper bromide or copper (II) bromide?
What is copper (II) bromide?