A single atom of an element has 11 protons, 11 electrons, and 12 neutrons. Which element is it? What chemical element has 19 electrons? What element has 53 protons and 74 neutrons? How many electrons are in a neutral atom of chlorine-37?
A single atom of an element has 11 protons, 11 electrons, and 12 neutrons. Which element is it? What is the smallest particle of an element? If an atom with a mass number of 202 has 122 neutrons, it is an atom of which element?
百度试题 结果1 题目6 An atom of element Q contains 19 electrons, 19 protons and 20 neutrons.What is Q? B A calcium B potassium C strontium D yttrium 相关知识点: 试题来源: 解析 B 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 ...
2. What does an element's atomic number do? It tells you what order it was discovered. It has no meaning. It tells you how many protons, or positive charges, are in the element. It tells you how much it weighs. Create your account to access this entire worksheet ...
In this topic, we will discuss the various things related to protons especially the mass of a proton. What Is An Atom? Atom is an atomic particle that makes up the entire universe. Furthermore, an atom is the smallest particle of an element. Most noteworthy, Atom is made up of three...
ICSEC - Grade 09 - CHEMISTRY - Atomic Structure And Chemical Bonding - Q23
matter. Each element is defined by the number of protons in its nucleus. The chemical elements are organized on theperiodic table of the elements. Each element has an atomic number and a symbol. The symbol may be based on the Latin name of the element and not be related to the English ...
When the stated mass number of an element is not a whole number that doesnotmean that there are parts of protons or neutrons present in the atom. It means that that mass number has been calculated to take into consideration theproportions of the different isotopes of that element believed to...
The number of protons = the 'Atomic Number', which is sometimes referred to as 'Z', defines the type of atom, i.e. which element it is an atom of. As indicated in theList of Chemical Elements, each atomic number corresponds to one single specific element. ...