Basic Chemistry Flashcard

Front

How many protons does krypton have?

Back

Krypton has 36 protons.

Front

How many valence electrons are in chlorine?

Back

Chlorine has 7 valence electrons.

Front

What element is represented in this Bohr Model? (Assuming the model shows 3 electrons in the first shell and 5 in the second)

Back

The element is Lithium.

Front

What are the products of the reaction NH3 -> ?

Back

The products are N2 + H2.

Front

Which element is represented by the symbol O?

Back

The element is Oxygen.

Front

Define an atom.

Back

An atom is the smallest unit of matter that retains the properties of an element.

Front

What is the atomic number?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

What is a chemical reaction?

Back

A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.

Front

What is the difference between an element and a compound?

Back

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

Front

What is the periodic table?

Back

The periodic table is a tabular arrangement of chemical elements, organized by their atomic number, electron configuration, and recurring chemical properties.