Different atomic number but same atomic weight
Different atomic number and different atomic weight
Same atomic number but different atomic weight
None of these given options options
- Deuterium is a stable isotope of hydrogen, which, unlike “normal” hydrogen atoms, or protium, also contains a neutron. The isotope deuterium has one proton, one neutron and one electron.
- Deuterium can be traced throughout the water cycle, also known as the hydrological cycle: the process of water moving from the surface of the Earth to the atmosphere and back in a continuous cycle.
The atomic number of an element is the number of protons in the nucleus of an atom of that element. Atomic weight, also referred to as relative atomic mass, is the ratio of the mean mass of the atoms of a chemical element to a certain standard.
If you are interested in preparing for the CSS MPT and other FPSC, SPSC, and PPSC General Recruitment Tests with us, get in touch with us.
Related MCQs
- First National Science & Technology Park Of Pakistan Was Inaugurated By Imran Khan On? (CSS 2020 Current Affairs Paper)
- Dec 10, 2019
- Dec 9, 2019
- Jan 4, 2020
- None of these
Submitted by: CSS Exam Desk Team
- Which state is the member of SCO? (CSS 2021 Current Affairs Paper)
- Azerbaijan
- Turkemenistan
- Turkey
- None of these
Submitted by: CSS Exam Desk Team
- The name of Hazrat Zaid bin Haritha is mentioned in which Surah? (CSS 2024 Islamic Studies Paper)
- Al-Saf
- Al-Ahzab
- Bani Israe
- Yaseen
Submitted by: CSS Exam Desk Team
- The SYNONYM of the word \"GELID\" is? (CSS 2012 English Precis & Composition Paper)
- Hot
- Soft
- Cold
- Hard
Submitted by: CSS Exam Desk Team
- The numbers of famous months are? (CSS 2013 Islamic Studies Paper)
- 4
- 6
- 7
- 2
Submitted by: CSS Exam Desk Team
- The SYNONYM of the word \"PALL\" is? (CSS 2016 English Precis & Composition Paper)
- Light
- Carry
- Horror
- Satiate
Submitted by: CSS Exam Desk Team
- The Killer Mountain is? (CSS 2014 Current Affairs Paper)
- K2
- Nanga Parbat
- Kangchenjunga
- None of these
Submitted by: CSS Exam Desk Team
- Gandhi Jinnah Talks were held in which city? (CSS 2023 Pakistan Affairs Paper)
- Bombay
- Delhi
- Karachi
- None of these
Submitted by: CSS Exam Desk Team
- International Day for the Elimination of Racial Discrimination is observed annually on? (CSS 2013 Current Affairs Paper)
- 23rd May
- 21st March
- 1st March
- None of these
Submitted by: CSS Exam Desk Team
- Khateeb –ul-Anbia as a title of? (CSS 2009 Islamic Studies Paper)
- Hazrat Idress (علیہ السّلام)
- Hazrat Ibrahim (علیہ السّلام)
- Hazrat Yaqoob (علیہ السّلام)
- Hazrat Shoaib (علیہ السّلام)
Submitted by: CSS Exam Desk Team
- Four Sacred months of Hijri Calendar are? Dhil Qaad, Dhil Hajj, Muharram and Rajab? (CSS 2015 Islamic Studies Paper)
- Muharram, Rajab, Jumada al-thani (Jumada II), Shawwal
- Thul-Qi’dah, Thul-Hijjah, Muharram and Rajab
- Safar, Sha’ban, Rabi’ al-awwal (Rabi’ I), Shawwal
- Dhu al-Hijjah, Ramadan, Rabi’ al-awwal (Rabi’ I), Sha’ban
Submitted by: CSS Exam Desk Team
- In water pollution, industries are said to be? (CSS 2016 General Science & Ability Paper)
- Line sources
- Point sources
- Area sources
- None of these
Submitted by: CSS Exam Desk Team
- The SYNONYM of the word \"VOID\" is? (CSS 2010 English Precis & Composition Paper)
- Lea
- Anger
- Teeming
- Emptiness
Submitted by: CSS Exam Desk Team
- The astronomical unit of light-year is used for? (CSS 2018 General Science & Ability Paper)
- Distance
- Time Period
- Light Intensity
- Time
Submitted by: CSS Exam Desk Team
- East India company was established in? (CSS 2012 Current Affairs Paper)
- 1603
- 1602
- 1600
- None of these
Submitted by: CSS Exam Desk Team
- Karachi Nuclear Power Plant was established in? (CSS 2019 Pakistan Affairs Paper)
- 1972
- 1970
- 1971
- None of these
Submitted by: CSS Exam Desk Team
- Operation Zarb-e-Azab was launched on? (CSS 2019 Current Affairs Paper)
- 24 April 2014
- 29 April 2014
- 15 June 2014
- None of these
Submitted by: CSS Exam Desk Team
- The permanent secretariat of SAARC is established at? (CSS 2011 Current Affairs Paper)
- Kathmandu
- Dhaka
- Delhi
- Islamabad
Submitted by: CSS Exam Desk Team
- Do not raise your voice above the voice of the Prophet (صلى الله عليه وسلم(. This order is in Surah? ? (CSS 2024 Islamic Studies Paper)
- Al-Ahzab
- Al-Maidah
- Al-Hujurat
- Al-Najam
Submitted by: CSS Exam Desk Team
- The first Muslim general entered victorious in The subcontinent in? (CSS 2020 Pakistan Affairs Paper)
- 612 AD
- 812 AD
- 712 AD
- None of these
Submitted by: CSS Exam Desk Team
- The principle used in Radar is the same as that of Sonar. In Radar we use radio waves; whereas in Sonar we use? (CSS 2010 General Science & Ability Paper)
- Radio waves
- Infrared waves
- Ultrasonic waves
- Supersonic waves
Submitted by: CSS Exam Desk Team
- Prophet Muhammad (صلی اللہ علیہ وسلم) opened the doors of Masjid-e-Nabawi to give the Christian pilgrims a safe space to pray. They were from which city? (CSS 2021 Islamic Studies Paper)
- Najrān
- Riyadh
- Taif
- Hijaz
Submitted by: CSS Exam Desk Team
- The SYNONYM of the word \"PAROXYSM\" is? (CSS 2007 English Precis & Composition Paper)
- Moral lesson
- Contradiction
- Sudden outburst
- Pallid imitation
Submitted by: CSS Exam Desk Team
- The highest polo ground in the world is Situated in Pakistan at? (CSS 2023 Pakistan Affairs Paper)
- Deosai
- Kalash
- Shandur
- None of these
Submitted by: CSS Exam Desk Team
- who was known in history as Mujadid Alf Thani,the reformer of second millenium? (CSS 2010 Pakistan Affairs Paper)
- Shaikh ahmed sirhind
- shah Walliullah
- sir syed ahmed khan
- none of these
Submitted by: CSS Exam Desk Team