Definitions The primary building blocks of atoms are protons, neutrons, and electrons. It is convenient to describe the composition of an atom in terms of the number of protons and neutrons in its nucleus (Figure 1 ). The term atomic number , conventionally denoted by the symbol Z , ...
There are three main types, protons, neutrons and electrons. Protons and neutrons make up the nucleus and electrons orbit them in a cloud.Answer and Explanation: The mass number is not the number of protons. The mass number is the number of protons added to the number of neutrons. The mas...
(a) Protons. (b) Neutrons,. (c) Protons + neutrons. (d) neutrons + electrons. Mass number: The mass number is the number of nucleons of an atom. mass of atom is situated at the center. Answer and Explanation:...
The mass number of argon is 40.How many protons, neutrons and electrons are there in an argon atom? ( ) 相关知识点: 试题来源: 解析 一个氩原子有 18 个质子、22 个中子和 18 个电子。 1. 原子序数: 氩的原子序数为 18,这意味着它的原子核中有 18 个质子。 2. 质量数: 氩的质量数为 40...
How do you use the key on your periodic table to find out the number of protons, neutrons, and electrons in an element? Element Atomic # Atomic mass # of protons # of electrons # of neutrons Mg Rb Au Pb Explain how to draw the nucleus of an atom. Draw the nucleus...
Careful measurements have shown that the mass of a particular atom is always slightly less than the sum of the masses of the individual neutrons, protons, and electrons of which the atom consists. The difference between the mass of the atom and the sum of the masses of its parts is called...
The element symbol :ZAXwhere,A (atomic mass)= no. of protons + no.of neutrons.Z (atomic number) is same as the protons and electrons. Nuclear stability:The nucleus is composed of protons and neutrons. The strongest nuclear force binds the particles tightly. ...
1 An atom of an element has an atomic number of 6 and a mass number of 12.(a)Using this information, complete the table to show the numbers of protons,neutrons and electrons in one atom of this element.(2)number of protons number of neutrons number of electrons(b)The Periodic Table ...
An atom consists of a nucleus and an electron cloud around it. Nucleus consists of protons and neutrons. A neutral atom has equal number of protons and electrons. The number of protons plus the number of neutrons is the mass number of the atom....
What is the mass number of an atom with 5 protons and 7 neutrons? An atom has 20 electrons and 20 neutrons. What is the mass of this atom? What is the mass number of the uranium-238 atom? An atom has a mass number of 24 and 13 neutrons. what is the atomic number of this atom...