What are atoms of the same element that have different mass numbers?

What type of bond occurs when two atoms share two pairs of electrons in a covalent bond?

What term refers to the minimum amount of fissionable material required for a chain reaction to occur?

What property describes how strongly atoms of an element pull on electrons in a chemical bond?

What intermolecular force occurs between all molecules?

What is the strongest intermolecular force?

What is one-way diffusion through a semipermeable membrane?

In what type of radioactive decay is an electron emitted?

What type of radioactive decay releases energy without changing the number of protons and neutrons?

What type of nuclear decay occurs when an unstable atom ejects a clump of two protons and two neutrons?

What idea states that tiny particles do not absorb or release energy in a smooth flow but in specific amounts?

What idea states that no two electrons in an atom can have the same set of four quantum numbers?

What is the only metal that is liquid at room temperature?

Which of the following is not a suspension?

What is the general term for a physical combination of pure substances?

What is the general term for a row of elements in the periodic table?

Which of the following factors must be present for hydrogen bonding to occur?

What substances are composed of a single type of atom?

What type of nuclear reactor produces more fuel than it consumes?

What element has the symbol Ca?

What value relates the number of moles of solute per mass of the solvent?

What substance is composed of two or more elements bonded together?

When atoms with different electronegativities bond, what is the type of bond formed between the atoms?

Which of the following is not a principle of the atomic theory?

Which of the following is an atom that has a positive electric charge because of losing electrons?

oxygen

potassium

sodium

gold

The organized study of the composition and interactions of matter is called _____________.

The process of mixing molecules of one substance with those of another substance by random molecular motion is called_____________.

By physical properties, elements are divided into three groups: metals, semimetals, and____________.

A homogeneous mixture that consists of a solute dissolved in a solvent is a _____________.

What is the chemical name for the covalent compound that contains one uranium and six fluorine atoms?

What term refers to the time required for one half of a radioactive sample to decay into a new substance?

What is a mixture containing tiny suspended clumps of particles called?

What term refers to the sum of the atomic masses of all the atoms in a molecule?

What unit refers to 6.022 x 10^23 particles of a substance?

What are the electrons located in the outermost shell of any atom called?

What type of intermolecular force is present between all polar molecules but not between nonpolar molecules?

Protons and neutrons are found in the ____________.

The law stating that elements show regular and repeating properties when arranged by increasing atomic numbers is the _____________ law.

If the molecules of a mixture are not completely mixed together, the substance is a _____________ mixture.

The process of combining two nuclei to form a heavier nucleus is ____________.

In a solution, the substance that is dissolved is the _____________.

What substances are composed of two or more elements bonded together?

What type of chemical bond results from the sharing of valence electrons between atoms?

What is the term for a diagram that shows the locations of all the atoms and valence electrons in a molecule?

What term describes how strongly the atoms of an element pull on electrons in chemical bonds?

Any substance that has the same physical properties throughout is a ______________ substance.