an element have atomic weight 40 and its
An element have atomic weight 40 and it's electronic configuration is 1s2, 2s2, 2p6, 3s2, 3p6. Then its atomic number and number of neutrons will be:
(1) 18 and 22
(2) 22 and 18
(3) 26 and 20
(4) 40 and 18
Ans: (a)18 and 22
Expected delivery within 24 Hours
the atomic number of an element is 35 and mass number is 81 the number of electrons in the outer most shell is1 7 2
which of the following is not isoelectronic1 na 2
the charge of an electron is -16 x10-19c the value of free charge on li ion will be1 36x 10-19c
iso-electronic species is1 f-o-2 2 f-
an element have atomic weight 40 and its electronic configuration is 1s2 2s2 2p6 3s2 3p6 then its atomic number and number of neutrons will be1 18
the nucleus of tritium contains1 1 proton 1 neutron 2 1 proton 3
which one of the following groupings represents a collection of isoelectronic species1 na ca2 mg2 2 n3 f- na3 be al3
which of the following are isoelectronic and isostructuralno-3 co2-3clo-3 so31 no-3 co2-3
the number of electrons in cl- ion is1 19 2 20 3 18 4 35ans
1942297
Questions Asked
3,689
Active Tutors
1458748
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
1. An overview of the ethical principles and standards in research and publication. 2. A discussion of the importance of these principles and standards
Describe the mother-child attachment before and after birth Identify the characteristics of fathers who have securely attached infants
As an educator, what are some ways that sex role stereotyping and gender biasing can be countered? How will you establish your classroom to avoid these pitfall
Video: Case of Torey who's Mother is Addicted to Opioids. (2 1/2 pages) 1) According to the video, Torey has basically raised herself with the help of a uncle
Based on the results of your analyses, how would you answer the question: "What is the meaning of social change for Walden graduate students?"
Define emerging adulthood and provide a brief overview of its significance to lifespan development.
If you were to join a personal growth group now, what are some of the agenda issues that you might formulate for yourself? As you envision setting