A. the number of protons in an atom B. the number of neutrons in an atom C. the number of electrons in an atom D. the total number of particles in an atom 相关知识点: 试题来源: 解析 A。元素的原子序数告诉我们一个原子中的质子数。原子序数等于质子数,选项 B 中子数不能由原子序数确定...
百度试题 结果1 题目The total number of protons and neutrons in an atom is calledA.the atomic numberB.the proton numberC.the mass numberD.the neutron number 相关知识点: 试题来源: 解析 C 反馈 收藏
The number of protons in an atom is referred to as the: a. mass number b. atomic mass c. atomic number d. charge Proton: Proton is a subatomic particle that lives inside the nucleus of an atom. It is positively charged and has a charge equal...
The number of protons in an atom equals the number of ___. Atoms: Atoms are comprised of three basic components. In the nucleus, there are protons (positive charge) and neutrons (no charge). These are where the vast majority of the weight is and will determine what type of atom this ...
The graph shows a decrease in atomic radii of period 3 elements across the period. ·Across the period,the atomic radii decrease .This is because the number of protons (the nuclear charge) and the number of electrons increases by one every time you go an element to the right. ...
1. The Elements and The Periodic Table(元素和周期表) The number of protons in the nucleus of an atom is referred to as the atomic number, or proton number, Z. The numbers of electrons in an electrically neutral atom is also equal to the atomic number, Z. The total mass of an atom ...
MALE PROFESSOR: And it's arranged according to increasing atomic number, which is … ? FEMALE STUDENT: The number of protons in each atom of an element. MALE PROFESSOR: Right.Well, early versions of the periodic table had gaps. Missing elements.Every time you have one more proton you have...
atomic number- the order of an element in Mendeleyev's table of the elements; equal to the number of protons in the nucleus or electrons in the neutral state of an atom of an element number- a concept of quantity involving zero and units; "every number has a unique position in the sequ...
The identity of an atom is determined only by the number of protons in its nucleus. 一个原子的特性仅由原子核中质子的数量来确定。 Hydrogen is hydrogen because it has just one proton, carbon is carbon because it has six, gold is gold because it has 79, and so on. ...
1. Definition of Protons: Protons are positively charged particles found in the nucleus of an atom. Each element has a unique number of protons. Hint: Remember that protons contribute to the overall charge and identity of the atom. 2. Atomic Number: The number of protons in an atom is ref...