Question

Use the periodic electrically neutral atom has the electron configuration

1s ^2 2s ^2 2p ^6 3s ^2 3p ^6 4s ^2 3d ^10 4p ^4 . What is the name of this atom?
a) Selenium
b) Chlorine
c) Oxygen
d) Sulfur

Answer 1

The name of the atom with the electron configuration 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^4 is Selenium (Se), which corresponds to answer choice a) Selenium.

Step-by-step explanation:

The periodic electrically neutral atom mentioned in the question has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p4. To determine the name of this atom, we count the electrons which sum to 34. By locating the atomic number 34 on the periodic table, we identify the element as Selenium (Se), which has the specified electron configuration. Thus, the answer to the question is a) Selenium.