Question

An aluminum atom has an atomic number of 13 and a mass number of 27,how many

a)protons
b) electrons

pls write the formula too ​

Answer 1

Element is

`\boxed{\sf {}^(27)Al_(13)}`

• Atomic number=13
• Mass number=27

`\\ \sf\longmapsto No\:of\:Protons=Atomic \:Number=13`

And

`\\ \sf\longmapsto No\:of\:Neutrons=Mass\:number-Atomic\:Number`

`\\ \sf\longmapsto No\:of\:Neutrons=27-13`

`\\ \sf\longmapsto No\:of\:Neutrons=14`

And

`\\ \sf\longmapsto No\:of\:electrons=No\:of\:Protons=13`