Chemistry World

Shout out to my newest followers! Excited to have you onboard! Ethan Walters, Alberto Mareve, Pradiptakishore Mohanty, Anael Ezekia Mtokoma, Uthman Mahmud, Kanwal Kumar, Godwin Kituyi, Hiwa Xafar, Abdul Mutaal Siddiqui, Abdulkareem A. Musbau, Archana Aravindakshan, Ram Pravesh, Atif Khaqan, Ruchir Sahoo, Rubin Kazan, Monicah Kamau, Manivel Mani, Ibrahim Abdul-rauf, Qhudsiya Heena, Narongon Limapus Daniel, Pascal Kimambo, Moemedi S. Max, Manoj Salunke, Atif Rehan, Hansraj Meshram, Nosiru Samuel Damilola, Tahira Sultana, Happiness Nkechinyere, Epilu Julius, Shobikutty, A R Malik, Nyirenda Malama, Kene Roro, Naima Suleman, Tadese Kabane, Abu Junior Changjwok Isaac, Jaspreet Kaur Jass, Rusian Kenedy Malapula, Assefa Amsalu, Said Nawab, Manjunath K Manju, Jocelyn Yabis, Seenaa Dheeraa, Christopher Gikundi, Trump Gifty, Raj Kumar, Joseph Anyanwu, Marya Ruthra, P Ravi Kumar, Obyjenny Nwatu

I've just reached 5K followers! Thank you for continuing support. I could never have made it without each and every one of you. 🙏🤗🎉

Shout out to my newest followers! Excited to have you onboard! Gameli Sg, Siraj Sar, Kapil Rajput, Princess Yolanda Nwai, Kuldeep Dhindsa, Tadesse Lammessa, Ram Satpute, Lucky Dikamo, Oumer Burka, Mukuru Tembe Tembe, Sileabat Gebeyehu Setie, Thickie Sweets, Negash Kediro, Rakiya Möhamed, Chipasha Kennedy, Vunais Mame Rumet, Shafiq Hakimi, Bhalakrishnan Vd, Sucharita Paul, Brian Davis Oluoch, LR Devendra Suthar, Malak Emad, Ramana Kornu, Speed Prakash, Mary Bawa, Zaharaddin Aliyu, Tapan Barman, Felix Oluwatoyin, Mac-hughes R Salngæ, Abigael Taff, Muhammad Idrees, Alvaro Danilo Sakasewa La Cruz, Ugwem Nteile, Chiteyta Comfort, Kimmy Klaus, Rinku Bansal, Prïñçé T. Tùgbé Jr., Shepherd Sikombe, Ashwani Kumar, Channi Panesar, Ernesto Lo, Daniel Nyanja, Emmanuel Mamukuyomi, Rashid Talent GH, Wilfrey Epetet, Nï Yvan Felix, Salome Paul, Luciana Miranda, Prayer Nyekpe Danladi, Phoebe Sirri

Shout out to my newest followers! Excited to have you onboard! Laith Halum, Ajifowowe Abduljeleel Sileola, Partha Sinha Ray, Mudassir Abdullahi, Oluboye O. Rapheal, Nasiru Muhammad, Timothy Markus, Ramesh Chand Saini, Feh Winifred, Rajkaran Garg, عبود عبدالحميد الجندى, Mulee Dha, Samwel Robart, Damodar Naidu, Shashi Kant Pramanik, Innayat Ullah Assakzai, Aqal Khan, Kimani Samuel, Olivia Anane, Umar Adamu Kwaro, Fa'iza B Idress, Œñah Dïvïñê, Un Koang Ruon Mut, Mayo Mayo, Çl Ëø, Yayah Jalloh, Sajin Ashebir, Sagar Diwakar, Itz Good Luck, Senzo Radebe, Salim Hussein, Loveth Knight, Omogolo Makgebo, Eda O Beriso, စိုး လေး, Mca Chekezo Esau, Sudhir Saw, Mpho Wa Neo, Lisakhanya Spopo, Jûdîth S Milanzî, Misiocha Elvis, Nicholas Melly, Prince Samuel, Danjuma Markus, Oluwanifemi Adeyemi, Felo Mwend, Aijaz Ali, Sodiq Omokayode, Wilson Chol Wanh Ador, Emmanuel Soh

Shout out to my newest followers! Excited to have you onboard! Murerekwa Charles, Barnabas Ayomide, Joy Shine, Gingston Shaji Ps, Vìjåý Kumar, আল মামুন সবুজ, Baljeet Singh, Chirwa Timothy Timox Chirwa, Abdullateef Ameenullahi, Ajeet Choudhary, Abdu Abdala, David Akase, Mohd Shakeel, Plexina Simbule Simukabe, Lata Abushe, Alusine Kamara, Hezbon Atemba, Happiness Lawson, Amy-kay Petersen, Prince Nbakina, Diana Melly, Akol Tong Jr., Henry Knox, John Abiodun, Rukayat Akinlade, ピョウ へーマン ミィンッ, Linus, Rodney W. L Ochefu, Paul Lazarus Ole, Nathernel Kadolina, Twambo Chiyanika, Drekz Wahhpz, Nelson Takuo, Dave Mediane, Emmzy Legend's, Anderson Kirwa, Yohana Bolis, Diarus Zoegar, Xerxes Smith, Musty Musty, Maxameddeeq Ibrahim, Nash brendah, Haliima Aliyyii, Kofta Haruna, Onome Preccy, Ibrahimu Muhammad, Abdi Duba Godan, Bacha Zada, No Ør, Onyeagoziriagozi Okereke

Shout out to my newest followers! Excited to have you onboard! ተሾመ ከአባይ ሰማይ ስር, Abdurrahman Muhammad, Gopinath Gopinath, David Mutambo, Jaga Lapang, AS KO FU, Nagarjuna Ullipayala, Glory Friday, Mary Salu, Ac Lyfe, Princess Ummeh, Ankul Kumar Ankul Kumar, Ganesh Raut, Aaron Roland, Bute Guyo, Ansari Mohmaad Musaddique, Changu Ahmed, Gobe Satesa, Munayat Alhassan Harun, Temana Berako, Mustafa Jalalabadi, Ncobizwe Mnguney, Muhammad Saidu Galadima, Ibrahim Muhammad, Davi Davi, Anaekwe Faithful, Raju Nishad Raju, Khan Tamur, Katamba Colli, Asad Khan, Silas Moses, Dagim, ሰለምቴዎች ኑእንሰባሰብ, Priscilla Makanjira, Kennedy P. Wonleh Jr., Suzzy Susan, Kabin Dhami, Josy Josphine, S Man S Adam, Mira Cle, Small peppe, Tsitsi Samuriwo, Shima Joseph, J'e Meyy, Khumo Boikhutso, Levi Augustine, Abubakar Alkasim, Mohammed Barkhadle, 善薄利, Jaymax Billaboy

Access previous year question answers for grade 10 carbon and its compounds.
Contact us for online and offline classes. 📚👨‍🏫📝🎯

In the periodic table, the number of elements in each period is determined by the maximum number of electrons that can be accommodated in the shells being filled.
✒️✒️✒️✒️✒️✒️✒️✒️✒️✒️✒️✒️
Calculation Based on Quantum Number

For a more precise entrance exam approach, the number of elements depends on which subshells (s, p, d, f) are being filled in that period:
Here's the breakdown by period, based on the orbitals filled

Period 1: Fills the 1s orbital (1 orbital x 2 electrons/orbital) = 2 elements (H, He).

Period 2: Fills 2s & 2p orbitals (1s + 3p = 4 orbitals x 2 electrons/orbital) = 8 elements (Li to Ne).

Period 3: Fills 3s & 3p orbitals (similar to period 2, 3d starts filling in period 4) = 8 elements (Na to Ar).

Period 4: Fills 4s, 3d, & 4p orbitals (1s + 5d + 3p = 9 orbitals x 2 electrons/orbital) = 18 elements (K to Kr).

Period 5: Fills 5s, 4d, & 5p orbitals (similar to period 4) = 18 elements (Rb to Xe).

Period 6: Fills 6s, 4f, 5d, & 6p orbitals (1s + 7f + 5d + 3p = 16 orbitals x 2 electrons/orbital) = 32 elements (Cs to Rn).

Period 7: Fills 7s, 5f, 6d, & 7p orbitals (similar to period 6) = 32 elements (Fr to Og).


Contact us for personalized classes