Atoms and Elements
The basic unit of a chemical element.
What is an atom?
This type of bond involves the sharing of electron pairs between atoms.
What is a covalent bond?
He is credited with creating the first version of the periodic table.
Who is Dmitri Mendeleev?
This is the process of one or more substances being transformed into new substances.
What is a chemical reaction?
The pH value of a neutral solution is this.
What is 7?
The smallest particle of an element that retains the properties of that element.
What is an element?
A bond formed by the complete transfer of one or more electrons from one atom to another.
What is an ionic bond?
This is the most abundant element in the universe.
What is hydrogen?
In this type of reaction, energy is released into the surroundings, usually as heat.
What is an exothermic reaction?
This taste is often associated with acids.
What is sour?
This element has the atomic number 6 and is essential for life.
What is carbon?
The tendency of one element to attract another element.
What is a electronegativity?
The horizontal rows on the periodic table are called these.
What are periods?
This is a reaction in which two or more substances combine to form a single compound.
What is a synthesis reaction?
A base that dissolves in water releases these ions.
What are hydroxide ions?
The number of protons in the nucleus of an atom determines this.
What is atomic number?
This occurs when atoms share three pairs of electrons.
What is a triple bond?
This element is known for having the highest electronegativity among all naturally occurring elements.
What is flourine?
These are substances that increase the rate of a chemical reaction without being consumed.
What are catalysts?
This is what happens when you mix an acid with a base.
What is neutralization?
These are atoms of the same element with different numbers of neutrons.
What are isotopes?
This type of bond is particularly strong and important in metals.
What is metallic bonding?
These elements are found in group 18 of the periodic table.
What are noble gases?
In this type of chemical reaction, an acidic substance reacts with a basic substance to form water and a salt.
What is a neutralization reaction?
What substance was created when we mixed vinegar and baking soda.
What is carbon dioxide?