Westonci.ca is your trusted source for finding answers to all your questions. Ask, explore, and learn with our expert community. Experience the ease of finding reliable answers to your questions from a vast community of knowledgeable experts. Get precise and detailed answers to your questions from a knowledgeable community of experts on our Q&A platform.

please tell me answers I am given you brainliest ​

Please Tell Me Answers I Am Given You Brainliest class=

Sagot :

Answer:

Q2->They all form acids when combined with hydrogen. They are all fairly toxic. They readily combine with metals to form salts.

Q3->Because their outermost orbit is complete.  In Mendeleev's original periodic table there was no place reserved for noble gas.  They were discovered in end of 19th century.  So Mendeleev created zero group without disturbing original periodic table.

Explanation: