Exploring the Atomic World

What is the atomic number of hydrogen?

1

What is the charge of a proton?

+1

What is the mass of a neutron?

1 amu

Do all atoms of the same element have the same number of neutrons?

No Signup and view all the answers

What are atoms with the same number of protons but different numbers of neutrons called?

Isotopes Signup and view all the answers

What do the letters in a nuclear symbol represent?

The element Signup and view all the answers

What is the mass number of the carbon atom with 6 protons?

12 Signup and view all the answers

How many neutrons does the carbon atom with 6 protons have?

6 Signup and view all the answers

What is the mass number of the carbon atom with 7 neutrons?

13 Signup and view all the answers

How many neutrons does the carbon atom with 7 neutrons have?

7 Signup and view all the answers

What is the most unstable carbon isotope used in carbon dating?

carbon-14 Signup and view all the answers

Where are electrons located in an atom?

outside the nucleus in an electron cloud Signup and view all the answers

What is the charge of an electron?

-1 Signup and view all the answers

How many electrons does a carbon atom with 6 protons have?

6 Signup and view all the answers

What are the main components of an atom?

The main components of an atom are protons, neutrons, and electrons. Signup and view all the answers

What is the atomic number of an atom?

The atomic number of an atom is the number of protons in its nucleus. Signup and view all the answers

What is the mass number of an atom?

The mass number of an atom is the total number of protons and neutrons in its nucleus. Signup and view all the answers

Who discovered that atoms were made up of subatomic particles?

Thomson, Rutherford, and Millikan discovered that atoms were made up of subatomic particles. Signup and view all the answers

What is the periodic table?

The periodic table is an organized reference of all known elements arranged according to their properties. Signup and view all the answers

Why is it recommended to have a periodic table as a reference?

Having a periodic table as a reference is recommended because it provides information about the properties of elements. Signup and view all the answers