Which of These Groups Is Incorrectly Matched with Its Group\family

Q30: Which family/group is largely unreactive?<br>A) Halogens<br>B) Noble

Q31: When an oxygen atom gains two electrons,

Q47: Which of these elements has seven valence

Q73: Which of the following is true?<br>A)Argon and

Q73: How many electrons are there in <sup>

Q75: Strontium is a member of what group\family?<br>A)halogens<br>B)noble

Q78: Chlorine has two isotopes, 35Cl and 37Cl

Q79: Which of the following is not true

Q80: Determine the correct number of protons and

Q81: What is the maximum number of electrons