Elements, Ions and Isotopes Flashcard

Front

What is an isotope?

Back

An isotope is a variant of a chemical element that has the same number of protons but a different number of neutrons, resulting in a different mass number.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

How do you calculate the mass number of an isotope?

Back

The mass number is calculated by adding the number of protons and neutrons in the nucleus.

Front

What is the symbol for gallium?

Back

The symbol for gallium is Ga.

Front

What is the relationship between protons and electrons in a neutral atom?

Back

In a neutral atom, the number of protons equals the number of electrons.

Front

What is the significance of the periodic table?

Back

The periodic table organizes elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What is the mass number of an isotope with 31 protons and 49 neutrons?

Back

The mass number is 80 (31 protons + 49 neutrons).

Front

What is the element with atomic number 28?

Back

The element with atomic number 28 is nickel (Ni).

Front

What is the period number for yttrium?

Back

Yttrium is found in period 5 of the periodic table.

Front

What is the period number for vanadium?

Back

Vanadium is found in period 4 of the periodic table.