What is s2p3?

The configuration s2p3 indicates 5 electrons in the highest occupied energy level, which is a feature of Group 5A.

What is the symbol of the element with the electron configuration 1s22s22p63s23p64s23d104p5?

bromine
Using the blocks in the periodic table we can write the electron configuration of bromine as: 1s22s22p63s23p64s23d104p5.

What element is 1s22s22p63s23p64s23d8?

Answer and Explanation: The atomic number is 28 which is of nickel (Ni). Hence, option b is the correct choice.

Is astatine bigger than tellurium?

Explain why a Mg atom is smaller than Na and Ca atoms. Predict the size of the astatine atom compared to an atom of tellurium and explain. Astatine is larger because it has one more energy level than tellurium and the shielding effect between. the nucleus and valence shell is greater in astatine.

Where do you find valence electrons?

Valence electrons are the electrons in the outermost shell, or energy level, of an atom. For example, oxygen has six valence electrons, two in the 2s subshell and four in the 2p subshell.