Chemistry Midterm 2024

Front

What is the electron configuration of an oxygen atom?

Back

1s² 2s² 2p⁴.

Front

What did Bohr add to the model of the atom?

Back

Electrons found in specific orbits around the nucleus.

Front

How many neutrons does the isotope of lithium have?

Back

5.

Front

How would you describe reactivity on the periodic table?

Back

Elements on opposite sides of the Periodic Table are most likely to react.

Front

What is an example of a chemical property?

Back

Corrosion (rusting).

Front

What is the atomic number of oxygen?

Back

8.

Front

What is the significance of the periodic table?

Back

It organizes elements based on their atomic number and properties.

Front

What is a covalent bond?

Back

A chemical bond formed by the sharing of electrons between atoms.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.