What is the main component of the atomic mass in English? A. Protons B. Electrons C. Neutrons D. Protons and neutrons 相关知识点: 试题来源: 解析 D。本题考查原子质量的主要组成部分。质子和中子的质量较大,是原子质量的主要构成部分,电子质量很小可忽略。选项 A 仅提到质子,不全面。选项 B 电子...
Atomic Structure Uncharged atoms generally contain a nucleus comprising protons and neutrons, surrounded by a cloud of electrons. The protons' positive charge attracts the negative electrons, holding them in orbit. Atomic Mass Atomic mass refers to the weight of the nucleus, which is roughly 1,800...
What nuclide has 27 protons and 33 neutrons? The atomic mass is equal to: A. the number of neutrons. B. the number of protons plus the number of electrons. C. the number of protons plus the number of neutrons. D. the number of electrons. E. the number of protons. ...
Atomic number (the number of protons in the nucleus), not atomic mass number (the number of protons and neutrons), determines chemical behavior. 子句类型: 宾语从句 连接词: THAT 3. 句子成分 主句 We [主语] now [状语] know [谓语] something. [宾语] 分句-1 Atomic number (the number...
(atomic #) # of Protons = 2 (atomic #) # of Neutrons = 2 (Mass# # of Neutrons = 2 (Mass#-- Atomic# Atomic# 4.00 4.00--2.00= 2.00) 2.00= 2.00) # of electrons = 2 (atomic #) # of electrons = 2 (atomic #) Diagram on Finding Protons, Diagram on Finding Protons, Neutrons,...
nuclei with mass number 90 to 149/ 40Ca( 40Ca,X)58Ni( 58Ni,X)92Mo( 92Mo,X)double-differential multiplicitiesenergyanglediabatic emissionAnalytical expressions are derived for the double-differential multiplicities with respect to energy and angle for the diabatic emission of neutron and protons ...
The atomic mass of the element is determined by the combined masses of neutrons and protons. True or false? Explain. Answer and Explanation: The atomic mass or atomic weight of an element (or put it in simple term, mass of an atom) is found ...
Why do atomic nuclei decay? Protons and neutrons strongly attract when they Why don't charged particles glow? Why does the strong nuclear force use pions and gluons? How many protons does an alpha particle have? What makes up the nucleus of an atom?
To find the number of neutrons in an atom, you need to find the mass number for each element. Theperiodic tablelists theatomic weightfor each element, which can be used to find mass number, For hydrogen, for example, the atomic weight is 1.008. Each atom has an integer number of neutro...
The stable, positively charged nucleon, having a mass 1,836 times that of an electron and being a baryon composed of two up quarks and one down quark. The proton is a basic component of all atomic nuclei and the nucleus of the protium isotope of hydrogen. ...