Oxygen is an element in its own right, so it only contains one element: oxygen.
There are two different elements in a molecule of CO2, carbon (C) and oxygen (O).
A molecule of baking soda (sodium bicarbonate, NaHCO3) contains three different elements: sodium (Na), hydrogen (H), carbon (C), and oxygen (O).
When atoms of different elements combine, they form molecules known as compounds. In compounds, atoms are bonded together through chemical bonds, such as ionic or covalent bonds, to create a new substance with unique properties.
If you mean CO2 there are 3 atoms of two elements: 1 carbon atom and 2 oxygen atoms. If you really did mean Co2, that would be a diatomic molecule of cobalt containing 2 atoms of 1 element. However, no such molecule exists.
Three: calcium, carbon, oxygen.
There are three different elements in the molecule CH4O: Carbon (C), Hydrogen (H), and Oxygen (O).
A molecule of glucose has three different elements viz., carbon, oxygen and hydrogen. The molecular formula of glucose is C6H12O6. There is actually 24 different elements. There are 6 Carbon elements,12 Hydrogen elements, and 6 Oxygen elements.
One molecule of glucose is composed of three different elements: carbon, hydrogen, and oxygen.
A molecule of glucose has three different elements viz., carbon, oxygen and hydrogen. The molecular formula of glucose is C6H12O6. There is actually 24 different elements. There are 6 Carbon elements,12 Hydrogen elements, and 6 Oxygen elements.
There are three elements present in sugar, namely carbon, oxygen and hydrogen.
The molecule C8H11NO2 has 4 different elements: carbon (C), hydrogen (H), nitrogen (N), and oxygen (O).
There are three different elements, carbon, hydrogen and oxygen.
There are two different elements in a molecule of CO2, carbon (C) and oxygen (O).
Three atoms total, but only two different kinds: Hydrogen and Oxygen.
There are two different elements in a water molecule. Its composed of 2 hydrogen atoms and one oxygen atom. H_2O
There are three, namely, potassium, bromine and oxygen.
An oxygen molecule consists of two oxygen atoms bonded together.