Answer
Given:
An element has 9 protons and 10 neutrons
To Find:
a) Number of electrons in the neutral atom
b) The atomic number of the element
c) The name of the element
Solution:
a) The number of protons = The number of electrons.
Since the neutral atom has 9 protons, it also has 9 electrons.
Number of electrons in the neutral atom – 9
b) The number of protons = the atomic number
Since the neutral atom has 9 protons, the atomic number of the element is also 9.
The atomic number of the element – 9
c) The element with atomic number 9 is Fluorine (F).
Work Step by Step
The number of protons = the atomic number.
The number of protons = the number of electrons in a neutral atom.
The atomic number determines the identity of an element.
