An element's atomic number is 40. How many electrons would an atom of this element have?

An atom of element A has 111 protons. What would the element's atomic number be?

How many neutrons does an element have if its atomic number is 55 and its mass number is 161?

Question

Chemistry

Liberty Middleton

11 July, 15:57

An element's atomic number is 40. How many electrons would an atom of this element have?

An atom of element A has 111 protons. What would the element's atomic number be?

How many neutrons does an element have if its atomic number is 55 and its mass number is 161?

+5

Answers (1)

Know the Answer?

Ethan Carrillo · Answer 1

Hello my friend,

since atomic no. = no. of electrons

there will be 40 electrons in that atom.

if and element has 111 protons, atomic no. will be 111.

no. of neutron = 161 - 55 = 106 neutrons.

An element's atomic number is 40. How many electrons would an atom of this element have?An atom of element A has 111 protons. What would the element's atomic number be?How many neutrons does an element have if its atomic number is 55 and its mass number is 161?

An element's atomic number is 40. How many electrons would an atom of this element have?

An atom of element A has 111 protons. What would the element's atomic number be?

How many neutrons does an element have if its atomic number is 55 and its mass number is 161?