Atomic Structure; Atoms Vs. Ions

Front

What is an anion?

Back

An anion is a negatively charged ion, which means it has more electrons than protons.

Front

What is the atomic number of an element with 9 protons?

Back

The atomic number is 9, as the atomic number is defined by the number of protons in the nucleus.

Front

What happens to an atom when it loses electrons?

Back

When an atom loses electrons, it becomes positively charged and is referred to as a cation.

Front

How do you calculate the number of neutrons in an atom?

Back

The number of neutrons can be calculated by subtracting the atomic number from the mass number (Neutrons = Mass Number - Atomic Number).

Front

What is the mass number of an element?

Back

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

Front

How many neutrons does Boron (B) have if its mass number is 11 and atomic number is 5?

Back

Boron has 6 neutrons (11 - 5 = 6).

Front

What is the difference between atoms and ions?

Back

Atoms are neutral particles with equal numbers of protons and electrons, while ions are charged particles that have either lost or gained electrons.

Front

What is a cation?

Back

A cation is a positively charged ion, which means it has more protons than electrons.

Front

What is the significance of the atomic number in the periodic table?

Back

The atomic number determines the position of an element in the periodic table and its chemical properties.

Front

What does it mean for an atom to be stable?

Back

An atom is considered stable when its outer electron shell is full, which typically occurs with 8 electrons in the outer shell.