are made up of different atoms and each type of atom has the chemical characteristics of its respective element.Answer and Explanation: The nucleus of an atom is the dense core that is located at the center of the atom. The nucleus is composed of positively charged particles called......
An atom is regarded as the smallest particle of a chemical element that is existing in nature. All substances are made up of either neutral or ionized atoms. The atoms of all elements have three subatomic particles i.e., electrons,...
The mass number of an atom is the total number of protons and neutrons contained within the nucleus of the atom. The number of protons determines the element and will always equal the atomic number of that element. The number of neutrons can change and will determine which isotope of that...
百度试题 结果1 题目(ii)What is the term for the total number of particles in the nucleus of an atom?nucleon number 相关知识点: 试题来源: 解析 nucleon number 反馈 收藏
2. What is the center of an atom called?A. The electronB. The nucleusC. The neutronD. The proton 相关知识点: 试题来源: 解析 B. The nucleus 原子的中心被称为原子核。原子核由带正电的质子和不带电的中子组成,电子则在原子核周围运动。因此,正确答案是 B. The nucleus。
Virtually all the mass of an atom resides in its nucleus, according toChemistry LibreTexts. The protons and neutrons that make up the nucleus are approximately the same mass (the proton is slightly less) and have the same angular momentum, or spin. ...
The more protons and neutrons contained in an atomic nucleus, the heavier that element is. So, for example, lead has 82 protons and between 120 and 132 neutrons in its nucleus, whereas hydrogen, the lightest element, has just one proton and occasionally one or two neutrons. The number of ...
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 collectively as nucleons. Neutrons have no charge and protons have a charge of +1 (that is, they ...
百度试题 结果1 题目(i) What is the total number of particles in the nucleus of an atom of½{3{}X?34 相关知识点: 试题来源: 解析 34 反馈 收藏
百度试题 结果1 题目 4. Man has learned to release energy from the nucleus of the atom.(对画线部分提问)What has man learned to release energy from? 相关知识点: 试题来源: 解析 答案见上 反馈 收藏