According to the periodic table, the neutral atom of what element has 4 protons, 5 neutrons, and 4 electrons?

Beryllium

Explanation:

Given parameters:

Number of protons = 4

Number of neutrons  = 5

Number of electrons  = 4

Unknown:

Element = ?

Solution:

To determine an element, the atomic number is the most important identifier.

The atomic number is the number of protons in an atom.

Since the atom here has a proton number of 4, checking on the periodic table, it is Beryllium, Be