LIVE Course for free

Rated by 1 million+ students
Get app now
JEE MAIN 2023
JEE MAIN 2023 TEST SERIES
NEET 2023 TEST SERIES
NEET 2023
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
2.8k views
in Chemistry by (54.2k points)
closed by

An atom X has 4 protons and 5 neutrons with electronic configuration 2, 2. Give information about its

(i) atomic number (ii) mass number (iii) valency

1 Answer

+1 vote
by (58.2k points)
selected by
 
Best answer

Number of protons of atom X = 4

Number of neutrons = 5 

Electronic configuration = 2, 2 

(i) Atomic number of atom X = 4 

(ii) Mass number = 4 + 5 = 9 

(iii) Valency = 2

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.

Categories

...