Proton and neutron are usually found in atomic nuclei.The electron is a subatomic particle carrying a negative electric charge. It has no known components or substructure, and therefore is believed to be an elementary particle.这种题最好有图解说比较好2.What is an element, mixture, molecule, ...
结果1 题目 6 The proton number of element X is 6. The proton number of element Y is 9.What is the formul a of a compound of these elements? D A X2Y3 B X3Y2 C XY3 D XY_4 相关知识点: 试题来源: 解析 D 反馈 收藏 ...
Atoms: Atoms are the purest form of matter. They consist of protons, neutrons, and electrons. The periodic table lists all of the different types of atoms that are known to exist and are known as elements. Answer and Explanation: An atom that has more protons than electrons is called a ...
What element has 4 protons 5 neutrons and 2 electrons? How many protons does nihonium have? What is the name of a proton acceptor in a reaction? How many protons does berkelium have? Calculate the net charge on a substance consisting of a combination of 7.0x10^13 protons and 4.4x10^13 ...
The element with atomic number 1 is hydrogen, symbol H. This means that one atom of hydrogen has a single proton inside its nucleus. Hydrogen is the... See full answer below.Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our ...
So, hydrogen has 1 proton, oxygen has 8 protons, iron has 26 protons, and so on. The number of neutrons is usually fixed for a particular atom (for example, the most common form of carbon has 6 neutrons), but this does not have to be so. How much of human body is empty space?
The number of protons in an element determines its atomic number, Z. Hydrogen is the lightest element and has one proton (Z = 1); uranium is the heaviest naturally occurring element and has 92 protons (Z = 92). Each proton, which is assigned a mass of 1.00728 atomic mass units (amu)...
Everyelementhas achemical symbol, e.g. the symbol for the element sodium is Na. Each element also has anAtomic Numberand aMass Number. Together, these describe the atoms of that particular element. It is possible to describe all known elements in a single table - which is called thePeriodic...
The atomic number of an element is the number of protons in the nucleus of an atom of that element. Hydrogen has 1 proton, and oganesson has 118.Related QuestionsWhere does the periodic table come from? Why does the periodic table split? Is mathematics a physical science? How is the ...
(b)State what is meant by the terms(i) element,(substance that) cannot be split up/ broken down into (two or more) simpler substances by chemical means1...OR(substance) made of atoms with the same atomic number/ number of protons/ proton number.on number... [1](ii) compound,(two...