Question

elements
every element has a unique atomic number which indicates the total number of protons in the nucleus of its atom.
atomic number: 12
element name: magnesium
symbol: mg
atomic mass: 24.305
you try:
what elements atomic mass has 11 electrons?
how many neutrons are in a nitrogen atom?
what do you think the color, symbol or box might mean?

Explanation:

Since the problem isn't clearly stated (the "You try" section has unclear questions due to image quality), but if we assume a common question like "How many neutrons are in a Magnesium atom?" (using the given atomic number 12 and atomic mass ~24.305):

Step1: Recall neutron formula

Neutrons = Atomic Mass (rounded) - Atomic Number
Atomic mass of Mg is ~24, atomic number is 12.

Step2: Calculate neutrons

Neutrons = $24 - 12 = 12$

Answer:

12 (for Magnesium, neutrons ≈ 12)

If the question was different (e.g., identifying the element), the answer would be Magnesium (Mg), atomic number 12. Please clarify the exact question for a precise answer.