Question

fill in the blanks
a. An icon which has a positive charge is called an ________.
b. the outermost shell of an atom is known as ________.
c. The ________ of an atom is very hard and dense. ​

Answer 1

Answer:

a. cation

b. valence shell

c. nucleus.

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Answer 2

Answer:

a. cation

b. valence shell

c. nucleus