Answered

11. An atom of an unknown element contains 56 protons, 53 electrons, and has a mass number of
135. Answer the following questions:
- What is the atomic number of this element?
- What is the name and chemical symbol of this element?
- How many neutrons are in the atom?
- What is the charge of this element's ion? Does it form a cation or an anion?



Answer :

GinnyAnswer

Final answer:

The atomic number of the element is 56, making it Barium with a chemical symbol Ba. The atom has 79 neutrons and forms a 2+ ion charge.


Explanation:

Atomic Number: The atomic number of the element is 56, which represents the number of protons in the nucleus.

Element and Symbol: The element with 56 protons is Barium with a chemical symbol Ba.

Neutrons and Ion Charge: The atom has 79 neutrons (135 - 56 = 79). Barium's ion charge will be 2+ (56 protons and 54 electrons).


Learn more about Atomic Structure here:

https://brainly.com/question/39629510


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