Question

only 2 electrons can fit in level 1
only 8 electrons can fit in level 2
only 8 electrons can fit in level 3
fill in level 1 first, then work to level 2
key
protons =
(play - doh color)
neutrons =
(play - doh color)
electrons =
(play - doh color)
what is the atomic mass of your element? 28
how many protons does your element have?
how many electron does your element have? 11
how many neutrons does your element have?
what is the charge of your element?
name of your element: silich
your name:
when you are done, leave this paper on the lab desk where you are working. leave this paper there with the play - doh still on it.

Explanation:

Step1: Recall atomic - mass formula

Atomic mass = Protons + Neutrons. Given atomic mass = 28.

Step2: Determine number of protons

The number of electrons is 11. In a neutral atom, number of protons = number of electrons. So, number of protons = 11.

Step3: Calculate number of neutrons

Neutrons=Atomic mass - Protons. Substitute atomic mass = 28 and protons = 11. Neutrons = 28 - 11=17.

Step4: Determine the charge

Since number of protons = number of electrons (11 = 11), the element is neutral. Charge = 0.

Answer:

How many protons does your element have? 11
How many neutrons does your element have? 17
What is the charge of your element? 0