Ask a Question

An atom has electronic configuration 2, 8, 7. What is the atomic number of this element?

← Prev Question Next Question →
+1 vote
499 views
asked May 14, 2017 in Chemistry by sforrest072 (157,439 points) ● 60 ● 410 ● 937

An atom has electronic configuration 2, 8, 7.
(a) What is the atomic number of this element?
(b) To which of the following elements would it be chemically similar? (Atomic numbers are given in parentheses.)
N(7) F(9) P(15) Ar(18)

1 Answer

+2 votes
answered May 14, 2017 by Rohit Singh (61,782 points) ● 35 ● 133 ● 356
selected May 14, 2017 by sforrest072
 
Best answer

Answer :
(a) The atomic number of this element is 17.
(b) It would be chemically similar to F(9) with configuration as 2, 7.

← Prev Question Next Question →

Related questions

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

One Thought Forever

“There is a close connection between getting up in the world and getting up in the morning.“
– Anon
~~~*****~~~

Related questions

© 2017 Sarthaks eConnect
Managed by Sarthaks Digitizing India
...