Um elemento X, pertence ao terceiro período da tabela periódica, forma com o hidrogênio um composto de fórmula H2X e com o potássio um composto de fórmula K2X.
a) Represente a configuração eletrônica desse elemento.
b) A que família pertence o elemento X?
Solved
Show answers
More tips
- C Computers and Internet How to Check the Speed of My Internet?...
- H Health and Medicine 10 Ways to Cleanse Your Colon and Improve Your Health...
- W Work and Career How to Write a Resume That Catches the Employer s Attention?...
- C Computers and Internet Е-head: How it Simplifies Life for Users?...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
- L Leisure and Entertainment How to Make a Paper Boat in Simple Steps...
- T Travel and tourism Maldives Adventures: What is the Best Season to Visit the Luxurious Beaches?...
- H Health and Medicine Kinesiology: What is it and How Does it Work?...
Answers on questions: Chemistry
- C Chemistry Be sure to answer all parts. Consider the formation of ammonia in two experiments. (a) To a 1.00−L container at 727°C, 1.30 mol of N2 and 1.65 mol of H2 are added....
- C Chemistry Citric acid (which we can abbreviate as H3Cit) is a triprotic carboxylic acid with the following acidity constants pKa1 = 3.128, pKa2 =4.761, and pKa3 = 6.396. a)...
- C Chemistry A catalyst decreases the activation energy of a particular exothermic reaction by 34 kJ/mol, to 57 kJ/mol. Assuming that the mechanism has only one step, and that...
- C Chemistry What is the difference between a precipitate and a solution?...
- C Chemistry 1. The diameter of an atom is in the order ofA. 0.2mB. 0.2mmC. 0.2nmD. 0.2pm...
- C Chemistry The color produce when the following compound is burnt LiCl NaCl KCl CaCl2...
- C Chemistry What is the mass number of an atom with 24 protons and 30 neutrons?...
- C Chemistry Of the following species, will have bond angles of 120°. A) PH3 B) ClF3 C) NCl3 D) BCl3 E) All of these will have bond angles of 120°....
- B Biology Ahot-air ballon is rising above the top of a hill. which term describes the top of the hill? -delta point -distance system -coordinate system -reference point...
- M Mathematics Ialso need with this tri trig i think the answer is 20.73 but there’s no answer for it and says to round to nearest 10th...
Ответ:
Think it's NC13
Explanation:
It's the only one missing in the molecule