Elements in the Periodic Table Are Arranged According to

Q29: Explain how the term "valence electrons" is

Q30: The electron configuration for phosphorus is<br>A)1s²1p<sup>6

Q31: Which characteristics correctly describe a proton?<br>A)approximate mass

Q32: What fourth period element is represented by

Q33: Which of the following subshells consists of

Q35: How many electrons can occupy the 2s

Q36: The symbol of the element with 23

Q37: The element with the electron configuration 1s<sup>2

Q38: The atomic number of an atom containing

Q39: At maximum,an f subshell can hold _