An atom is a single nucleus, made up of protons and neutrons, with orbiting electrons. A molecule is a ‘group’ of atoms chemically bonded together to create a new substance with different properties. An element is a type of atom/substance made up of a single type of atom (for example, Carbon-12 is an element where all of the atoms have 6 protons, 6 neutrons and 6 electrons).
A molecule is made up of two or more atoms, an element is an atom with a specific number of protons and an atom is the smallest particle of an element that exists. An atom is singular, atoms make up molecules, each atom can be identified as a specific element depending on how many protons it has
2Mg is two magnesium atoms which are not bonded together.
Just to add on that, in case someone didn’t catch on, 2Mg are two magnesium atoms, but they are not a molecule or two molecules as the atoms are not bonded together as mentioned above
Just to add on that, in case someone didn’t catch on, 2Mg are two magnesium atoms, but they are not a molecule or two molecules as the atoms are not bonded together as mentioned above
How do you know that in the oxygen molecule the 2 atoms are bonded together and in the 2Mg the 2 atoms are not bonded together and that it's an element? Is it because for oxygen the 2 comes after the O (O2) and for Magnesium the 2 comes before the Mg (2Mg)
An atom is a single nucleus, made up of protons and neutrons, with orbiting electrons. A molecule is a ‘group’ of atoms chemically bonded together to create a new substance with different properties. An element is a type of atom/substance made up of a single type of atom (for example, Carbon-12 is an element where all of the atoms have 6 protons, 6 neutrons and 6 electrons).
Yes! O2 is two oxygen atoms bonded together
2Mg is two magnesium atoms which are not bonded together.
How do you know that in the oxygen molecule the 2 atoms are bonded together and in the 2Mg the 2 atoms are not bonded together and that it's an element? Is it because for oxygen the 2 comes after the O (O2) and for Magnesium the 2 comes before the Mg (2Mg)
How do you know that in the oxygen molecule the 2 atoms are bonded together and in the 2Mg the 2 atoms are not bonded together and that it's an element? Is it because for oxygen the 2 comes after the O (O2) and for Magnesium the 2 comes before the Mg (2Mg)
Number in front means the number of molecules and separate elements. Number after in subscript represents number in a molecule. 2H2O means that there are 2 H2O molecules where there are 2 H elements and 1 O.
How do you know that in the oxygen molecule the 2 atoms are bonded together and in the 2Mg the 2 atoms are not bonded together and that it's an element? Is it because for oxygen the 2 comes after the O (O2) and for Magnesium the 2 comes before the Mg (2Mg)
Yes, the 'bigger' numbers indicate quantity of molecules. For example:
Mg + O(small 2) --> MgO
We need 2 oxygens to balance the RHS
Mg + O(small 2) --> 2MgO
But now we need 2 molecules of magnesium on the LHS
2Mg + O(small 2) --> 2MgO
The 'small' number indicates how many atoms of that element make up that molecule. Eg, H(small 2)SO(small 4) indicates there are 2 hydrogens and 4 oxygens in sulfuric acid.
OK so, F2 (small 2) means 2 fluorine atoms in the fluorine molecule? CaCl2 is 1 calcium element and 2 chlorine atoms? MgSO4 is one magnesium element and 1 sulfur element and 4 oxygen atoms?
Yes, the 'bigger' numbers indicate quantity of molecules. For example:
Mg + O(small 2) --> MgO
We need 2 oxygens to balance the RHS
Mg + O(small 2) --> 2MgO
But now we need 2 molecules of magnesium on the LHS
2Mg + O(small 2) --> 2MgO
The 'small' number indicates how many atoms of that element make up that molecule. Eg, H(small 2)SO(small 4) indicates there are 2 hydrogens and 4 oxygens in sulfuric acid.
OK so, F2 (small 2) means 2 fluorine atoms in the fluorine molecule? CaCl2 is 1 calcium element and 2 chlorine atoms? MgSO4 is one magnesium element and 1 sulfur element and 4 oxygen atoms?
OK so, F2 (small 2) means 2 fluorine atoms in the fluorine molecule? CaCl2 is 1 calcium element and 2 chlorine atoms? MgSO4 is one magnesium element and 1 sulfur element and 4 oxygen atoms?
Precisely.
If you had 2CaCl(small 2) however then it's 2 times everything!
So 2 calcium atoms and 4 chlorine atoms.
This means you have 2 CaCl2 molecules however, it does not mean there 2 calcium atoms and 4 chlorine atoms bonded together.
If you had 2CaCl(small 2) however then it's 2 times everything!
So 2 calcium atoms and 4 chlorine atoms.
This means you have 2 CaCl2 molecules however, it does not mean there 2 calcium atoms and 4 chlorine atoms bonded together.
So as you said the bigger number indicate quantity of molecule. And will elements there will not be a number in front or after? Eg. O (oxygen) is an element. and O2 is 2 oxygen atoms in the molecule (because 2 atoms of the same element are bonded together?)
So as you said the bigger number indicate quantity of molecule. And will elements there will not be a number in front or after? Eg. O (oxygen) is an element. and O2 is 2 oxygen atoms in the molecule (because 2 atoms of the same element are bonded together?)
what do you mean?
Oxygen is an element, however, as a gas, it never exists as O by itself because that is less stable. Instead,it exists as 2 oxygen atoms, O2; an oxygen molecule.
Oxygen is an element, however, as a gas, it never exists as O by itself because that is less stable. Instead,it exists as 2 oxygen atoms, O2; an oxygen molecule.