Fill in this table: 7^14 N 12^24Mg 11^23Na 26^59Fe Mass number ? ? ?

step 1 Let's fill in the following table. First for nitrogen 14, mass number is 14, atomic number is 7,

Fill in this table: 7^14 N 12^24Mg 11^23Na ...

Fill in this table: $$\begin{array}{lcccc} & { }_{7}^{14} \mathrm{~N} & { }_{12}^{24} \mathrm{Mg} & { }_{11}^{23} \mathrm{Na} & { }_{26}^{59} \mathrm{Fe} \\\hline \text { Mass number } & ? & ? & ? & ? \\\text { Atomic number } & ? & ? & ? & ? \\\text { Number of protons } & ? & ? & ? & ? \\\text { Number of neutrons } & ? & ? & ? & ? \\\text { Number of electrons } & ? & ? & ? & ? \\\hline\end{array}$$

Fill in this table:
$$\begin{array}{lcccc} & { }_{7}^{14} \mathrm{~N} & { }_{12}^{24} \mathrm{Mg} & { }_{11}^{23} \mathrm{Na} & { }_{26}^{59} \mathrm{Fe} \\\hline \text { Mass number } & ? & ? & ? & ? \\\text { Atomic number } & ? & ? & ? & ? \\\text { Number of protons } & ? & ? & ? & ? \\\text { Number of neutrons } & ? & ? & ? & ? \\\text { Number of electrons } & ? & ? & ? & ? \\\hline\end{array}$$

Key Concepts

Atomic Number

The atomic number represents the number of protons in an atom's nucleus and exactly defines the chemical element. This number is key in determining the element’s place in the periodic table and governs the number of electrons in a neutral atom, which in turn influences its chemical properties.

Mass Number

The mass number is the sum of protons and neutrons in an atom's nucleus. It provides an estimate of an atom's overall mass and helps distinguish between different isotopes of the same element, where the variation lies in neutron count rather than the atomic number.

Isotopes

Isotopes refer to variants of a chemical element that share the same number of protons (atomic number) but differ in the number of neutrons, resulting in different mass numbers. They exhibit similar chemical behavior but may have different nuclear stability and physical properties.

Number of Neutrons

The number of neutrons in an atom is found by subtracting the atomic number from the mass number. Neutrons contribute to the mass of the atom and are essential in maintaining the stability of the nucleus, as they help offset the repulsive forces between positively charged protons.

Number of Electrons

For a neutral atom, the number of electrons equals the number of protons (the atomic number). Electrons play a crucial role in chemical bonding and reactions, as their arrangement in atomic orbitals defines an element's reactivity and interactions with other atoms.

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