Mortal Sin and the Ten Commandments

Hi,

I'm born and raised Catholic, and I want to continue learning about and growing in my Faith.

I have a question. Is breaking one of the Ten Commandments automatically a mortal sin? For example, if a parent tells a child not to do something yet he or she goes ahead and does it, does it mean that the child committed a mortal sin?
Please help.

Thanks!



I didn't find the right solution from the Internet.



References:

forums.catholic.com/t/mortal-sin-and-the-ten-commandments/437287


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