An atom is the basic unit of matter, consisting of protons, neutrons, and electrons.
What is an element?
An element is a substance that cannot be broken down into simpler substances by chemical means. It is made up of only one type of atom.
What is a compound?
A compound is a substance made up of two or more different elements chemically bonded together.
What is the difference between an atom and an element?
An atom is the smallest unit of an element that retains the characteristics of that element, while an element is a pure substance made up of only one type of atom.
Give an example of an element.
Oxygen is an example of an element. It is made up of only oxygen atoms.
What are some examples of compounds?
Water (H2O) and carbon dioxide (CO2) are examples of compounds.
What is the atomic symbol for carbon?
The atomic symbol for carbon is C.
How many atoms are in a water molecule?
There are three atoms in a water molecule: two hydrogen atoms and one oxygen atom.
What is the atomic number of hydrogen?
The atomic number of hydrogen is 1.
What is a molecule?
A molecule is a group of two or more atoms held together by chemical bonds.
What is the difference between a compound and a mixture?
A compound is a substance made up of two or more elements chemically bonded together, while a mixture is a combination of two or more substances that are not chemically bonded.
What is the atomic mass of oxygen?
The atomic mass of oxygen is approximately 16 atomic mass units.
What is the difference between a molecule and a compound?
A molecule refers to any group of atoms bonded together, while a compound specifically refers to a group of atoms of different elements bonded together.
What are some examples of elements?
Some examples of elements are hydrogen (H), helium (He), and oxygen (O).
Define the term 'atomic nucleus'.
The atomic nucleus is the central part of an atom that contains protons and neutrons.
What are the three subatomic particles found in an atom?
The three subatomic particles found in an atom are protons, neutrons, and electrons.
What is an atom?
An atom is the basic unit of matter, consisting of protons, neutrons, and electrons.
What is an element?
An element is a substance that cannot be broken down into simpler substances by chemical means. It is made up of only one type of atom.
What is a compound?
A compound is a substance made up of two or more different elements chemically bonded together.
What is the difference between an atom and an element?
An atom is the smallest unit of an element that retains the characteristics of that element, while an element is a pure substance made up of only one type of atom.
Give an example of an element.
Oxygen is an example of an element. It is made up of only oxygen atoms.
What are some examples of compounds?
Water (H2O) and carbon dioxide (CO2) are examples of compounds.
What is the atomic symbol for carbon?
The atomic symbol for carbon is C.
How many atoms are in a water molecule?
There are three atoms in a water molecule: two hydrogen atoms and one oxygen atom.
What is the atomic number of hydrogen?
The atomic number of hydrogen is 1.
What is a molecule?
A molecule is a group of two or more atoms held together by chemical bonds.
What is the difference between a compound and a mixture?
A compound is a substance made up of two or more elements chemically bonded together, while a mixture is a combination of two or more substances that are not chemically bonded.
What is the atomic mass of oxygen?
The atomic mass of oxygen is approximately 16 atomic mass units.
What is the difference between a molecule and a compound?
A molecule refers to any group of atoms bonded together, while a compound specifically refers to a group of atoms of different elements bonded together.
What are some examples of elements?
Some examples of elements are hydrogen (H), helium (He), and oxygen (O).
Define the term 'atomic nucleus'.
The atomic nucleus is the central part of an atom that contains protons and neutrons.
What are the three subatomic particles found in an atom?
The three subatomic particles found in an atom are protons, neutrons, and electrons.