Unit 2 test Review

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 determine the number of neutrons in an atom?

Back

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

Front

What is an 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 mass number of an atom?

Back

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

Front

How many protons does titanium have?

Back

Titanium has 22 protons.

Front

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

Back

In a neutral atom, the number of electrons is equal to the number of protons, which is the atomic number.

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

How do you solve a nuclear equation?

Back

To solve a nuclear equation, balance the total number of protons and neutrons on both sides of the equation.

Front

What do isotopes of carbon have in common?

Back

Isotopes of carbon have the same atomic number (6 protons) but different mass numbers due to varying numbers of neutrons.

Front

What is the formula to calculate the number of neutrons?

Back

Neutrons = Mass number - Atomic number.