Semester 1 Review 2021

All of the following were part of Dalton's atomic theory except

The shape of the ammonia molecule, NH₃, is

Which of the following elements is a representative element?

What is the metric system prefix for the quantity .01?

Which of the following is true about subatomic particles?

If the temperature of a material decreases, what happens to its density?

The letter "d" in the symbol 4d¹⁰ indicates the

How many unpaired electrons are in an atom of phosphorus?

How many neutrons does rhodium-104 have?

An element's atomic number is 84. This element has

5200 in scientific notation is

Which of the following covalent bonds is least polar?

If a certain type of EMR has a wavelength twice that of red light, its frequency is

Which of the following is expressed to 2 significant figures?

To what category does an element belong if it is a poor conductor of electricity?

A bond formed between calcium and oxygen is most likely

Which of the following diatomic molecules is joined by a triple covalent bond?

Who is credited with discovering the electron?

What is the maximum number of p orbitals in an energy level/shell?

Which of the following is expressed to 3 significant figures?

What is the maximum number of electrons in the 4th energy level?

What is the electron configuration of sodium?

Which of the following elements has the lowest electronegativity?

What is the formula of the ion formed by magnesium?

What is the formula for aluminum phosphide?

Which of the following is in the same period as nitrogen?

Express 3.20 cm + 2.8 cm to the correct number of significant figures.

A scientific law is a

What is the electron configuration for Fe²⁺?

What does the number 104 represent in rhodium-104?

What is the next orbital in the series 1s, 2s, 2p, 3s, 3p, 4s?

Which of the following molecules would be an exception to the octet rule?

______ says that e^- will occupy orbitals of the same energy so as to maximize the unpaired e^-.

In the dot structure for the ion SO₃^2-, the S atom is surrounded by

What is the charge on the sulfide ion?

What is the quantity 12,500 m expressed in km?

Mendeleev's periodic table was arranged in order of increasing atomic

The shape (molecular geometry) of SO₃^2- is

Which of the following elements forms an ion with a +1 charge?

How does oxygen obey the octet rule when reacting to form compounds?

How does ionization energy change from left to right across a period in the periodic table?

Which of the following elements is an inner transition metal?

What is the charge of an anion?

Elements that are characterized by the filling of p orbitals are classified as

Which of the following elements, all in group 5A, has the smallest radius?

According to Bohr, the energy of an electron is

Express 3.5 cm x 2.75 cm using the correct number of significant figures.

Which of the following colors of visible light has the highest frequency?

When you finish working with chemicals, always

Who was among the first to suggest the concept of the atom?