2024 Semester 1 - FINAL

Front

What is the hyphen form for an isotope of nitrogen with a mass number of 15?

Back

Nitrogen-15

Front

What is the atomic number of an atom with 13 protons?

Back

13

Front

What is a cation?

Back

A cation is an ion with a positive (+) charge.

Front

What is the average atomic mass of Aluminium?

Back

26.982

Front

What is an ionic bond?

Back

An ionic bond is formed between 1 metal and 1 nonmetal.

Front

Define isotope.

Back

Isotopes are variants of a particular chemical element that have the same number of protons but different numbers of neutrons.

Front

What is the difference between an anion and a cation?

Back

An anion is a negatively charged ion, while a cation is a positively charged ion.

Front

What does the atomic number represent?

Back

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

Front

What is the significance of mass number?

Back

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

Front

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

Back

Subtract the atomic number from the mass number.