Atomic structure

Proton is positively charged (+1).

Is a neutron negatively charged (-1)?

How is electron charged?

Which numbers are added to give the mass number of an atom?

An aluminium atom has a nucleon number of 27 and a proton number of 13. How many neutrons does this aluminum atom contain?

Which two particles are isotopes? (read the table)

What do the nuclei of ¹₁H hydrogen atoms contain?

What do the nuclei of ³⁷₁₇Cl chlorine atoms contain?

Use the Periodic Table to help you name the element with an electronic configuration of 2, 8, 2.

Use the Periodic Table to help you name the element.

the element with an electronic configuration of 2, 8, 7