Chemistry Final Part 1

The distance between two successive peaks on adjacent waves is its

Argon, Krypton, and xenon are

If a mixture is not uniform in composition, it is said to be

An electron for which n = 1 more _____ than an electron for which n = 2

the liquid state of matter can be described as

Inorganic chemistry is the study of

The statement that an electron occupies the lowest available energy orbital is

A chemical can be defined as

A horizontal row of blocks in the periodic table is called a(n)

Rutherford's experiments led him to conclude that atoms contain massive central regions that

The nucleus of an atom has all of the following characteristics except that it

Mendeleev predicted that the spaces in his periodic table represented

a spherical electron cloud surrounding an atomic nucleus would best represent

The atomic theory proposed by Dalton has been

A chemical change occurs when

The number of atoms in 1 mole of carbon is

A solid substance is

A measurement that closely agrees with an accepted value is best described as

The product of the frequency and the wavelength of a wave equals the

A three-dimensional region around a nucleus where an electron may be found is called a(n)

The quantum number that indicates the position of an orbital about the three axes in space is the

Each atomic orbital is described by its principle quantum number followed by the

A quantum of electromagnetic energy is called a(n)

Applied research is carried out in order to

The Liter is defined as

As the mass number of an element's isotopes of an element increases, the number of protons

How many isotopes of hydrogen are known?

an atom is electrically neutral because

experiments with cathode rays led to the discovery of the

The number of sublevels within each energy level of an atom is equal to the value of the magnetic quantum number

Mendeleev didn't list elements in his periodic table in order of increasing atomic mass; he grouped together similar

The set of orbitals that are dumbbell shaped and directed along the x,y, and z axes are called

The number of orbitals for d sub level is

According to the Borh model of the atom, the single electron of a hydrogen atom circles the nucleus

A measure of the quantity of matter is

Which rule requires that each of the p orbitals at a particular energy level receive one electron before having 2

The group of soft, silvery, reactive metals, all of which have one electron in an s orbital, is known as the

Oxygen can merge with Carbon to form two compounds, CO and CO2. The ratio of the masses of oxygen that combine wit

The discovery of what elements added a new column to Mendeleev’s periodic table?

whose series of experiments identified the nucleus of the atom

A nuclear particle that has about the same mass as a proton, but with no electrical charge, is called a(n)

For an electron in an atom to change from the ground state to an excited state

Isotopes are atoms of the same element that have different

A physical change occurs when a

The mass of 1 mol of chromium (atomic mass 51.996 amu) is

the two most important properties of all matter are

All isotopes of hydrogen contain

The major difference between a 1s orbital and a 2s orbital is that

organic chemistry is the study of

which of the following statements is true according to modern atomic theory?

the first four sublevels with the maximum number of electrons that can be accommodated in each sublevel are

If a mixture is uniform in composition, it is said to be

An orbital that can ever exist according to the quantum description of the atom is

A state of matter in which a material has no definite shape but has a definite volume is the ____ state

An aluminum isotope consists of 13 protons, 13 electrons, and 14 neutrons. Its mass number is

The change of an atom from an excited state to the ground state always requires

Elements in a group or column in the periodic table can be expected to have similar

which of the following is an intensive property of matter

The Aufbau principle states that an electron

A line spectrum is produced when a n electron moves from one energy level

The electrons available to be lost, gained, or shared when atoms form compounds are called

the quantity of matter per unit volume is

the atomic number of oxygen, 8, indicates that there are eight

The total number of protons and neutrons in the nucleus of an atom is its

Both the Heiseberg uncertainty principle and the Schrödinger wave equation

How many orientations can an s orbital have about the nucleus

Nobel glasses are in group 18 and are best known because they are

the number of significant figures in the measurement 0.000

Visible light, X rays, infrared radiation, and radio waves all have the same

the vertical column on the periodic table are called

The wave model of light does not explain

a mixture is

According law of conservation, when Na, H, and O react to form a compound, the mass of the compound is _ sum of ind mass

a true statement about mass is that

if electrons in atom have the lowest possible energies, the atom is in the

The most characteristic property of the noble gassese is that they

When an electron is acquired by a neutral atom, the energy is called

Molar mass

According to the law of definite proportions, any two samples of KCl have

if repeated measurements agree closely but differ widely from the accepted value, these measurements are

Which of the following is not a chemical change

Biochemistry is the study of

The region outside the nucleus where an electron can most probably be found is the

which of the following is an extensive property of matter

Basic research is usually performed

The frequency of electromagnetic radiation is measured in waves/second, or

The principles of atomic theory recognized today were conceived by

Matter includes all of the following except

The two electrons in the 1s orbital must have different spin quantum numbers to satisfy

The density of aluminum is 2.70 g/cm^3. What is the mass of a solid piece of aluminum with a volume of 1.50 cm^3

Chlorine has atomic number 17 and mass number 35. It has

D has 3 mass units and each atom of element E has 5 mass units, a molecule composed of one atom each of D and E has

If 4.0g of element A combines with 10. G of element B, then 12 g of element A combined with ____ g of element B

A volume of 1 millimeter is equivalent to

The SI base units for length and time are

The horizontal rows on the periodic table are called

The element with electron configuration 1s² 2s² 2p⁶ 3s² 3p² is

The metric unit for length that is closest to the diameter of a pencil is the

a compound is

Which of the following is not a physical change?