因此,正确答案是 B. The nucleus。反馈 收藏
Which atom is this? A neutral atom has the following electron configuration: He 2s22p6 a. What is the chemical symbol for the atom? b. How many electrons does the atom have? c. How many 2p electrons are in the atom? [{Blank}] is the same for all atoms of an element,...
What is the electron configuration for a radium atom (Z= 88) in the ground state? Which element has the ground-state electron configuration Kr5s^2 4d^{10} 5p^4? What 2+ ion has the following ground state electron configuration 1s^2? a. Mn^2+ b. Be^2+ c. Ca^2+ d. Cu...
An atom that has more protons than electrons is called a cation. Ions are charged atoms or combinations of atoms. When an atom loses one or more...Become a member and unlock all Study Answers Try it risk-free for 30 days Try it risk-free Ask a question Our experts can answer your...
Science Chemistry Electron configuration What is the maximum number of electrons the 2s orbital can have? � Question:What is the maximum number of electrons the 2s orbital can have?Atomic Structure:An atom is the smallest unit by which matter is made up of. The atom has electrons, ...
DFT study of inner-sphere electron transfer in a gas-phase SN2 reaction at the saturated carbon Moreover, the amount of transferred electron density is related to the electronegativity of the halogen atom. Two parameters in the electron transfer theory... YM Xing,XF Xu,L Chen,... - 《Physi...
Electron e 1/1836≈ 0.0005 ≈ zero -1 Neutron n 1 0(neutral) ≈ means "approximately equal to" The nucleus of an atom: Each atom has a nucleus at approximately the centre of its volume consisting of the two types of particles called protons and neutrons. Protons and neutrons are known ...
Atoms are the fundamental unit of an element. They consist of a nucleus and surroundingelectrons. When an atom has an incomplete electron shell, it is said to have valence electrons. When two or more atoms come together to share outer shell valence electrons, a chemical (covalent) bond is ...
What is an electron? An electron is a negatively charged subatomic particle that can be either bound to anatomor free (not bound). An electron that is bound to an atom is one of the three primary types of particles within the atom -- the other two areprotonsandneutrons. ...
For example, an atom of sodium is electrically neutral, but when it loses an electron, it becomes a positively charged ion and can bond with a negatively charged ion to form a molecule. 10 In essence, while both atoms and molecules are foundational concepts in chemistry, they represent ...