Atoms, Ions and atomic Structure

An atom contains 29 protons. What is the correct chemical symbol for this atom?

An ion contains 32 electrons and has a charge of 2-. What is the identity of this ion?

(Use the correct chemical symbol with the appropriate charge. Add the charge after the numerical value. Example: P2+. Do not worry about showing the charge as a superscript)

Tags

NGSS.HS-PS1-1

An atom of chlorine contains 15 neutrons. What is the mass number of this atom?

Tags

NGSS.HS-PS1-8

An ion of sodium (Na) has a charge of 1+ and a mass number equal to 25. How many neutrons does this ion contain?

Tags

NGSS.MS-PS1-1

An ion of Bromine (Br) has a charge of 1-. How many electrons does this ion contain?

Tags

NGSS.HS-PS1-1

What would e the charge of an atom that loses four electrons?

What would be the charge of an atom that gains three electrons?

An atom has a _____ charge.

• positive

• negative

• neutral

An anion has a _____ charge.

• positive

• negative

• neutral

An cation has a _____ charge.

• positive

• negative

• neutral