百度试题 结果1 题目10 An isotope of element Y has 19 protons and 20 neutrons in its nucleus. Which is the symbol for the ion of Y? B2039A YB19192039C YD1919 相关知识点: 试题来源: 解析 B 反馈 收藏
a) Given the elements F and Ne, which has the smaller first ionization energy? Of the following which has the highest first ionization energy? Argon Neon Helium Krypton Which element has a complete valence electron shell? Which of the following sets of quantum ...
Which element has the same number of valence electrons as phosphorus? Which element will most likely gain electrons? a. Cl b. Na c. Ne Why? What is an atom that has more protons than electrons? What element has 10 electrons? What element has 13 electrons?
The number of protons determines the element of the atom, while the number of neutrons can vary (resulting in different isotopes of the same element). Electrons exist in energy levels or shells around the nucleus, and each shell can hold a specific number of electrons. Example of an atom: ...
Tin is the 49th most abundant element on Earth and has, with 10 stable isotopes, the largest number of stable isotopes in the periodic table, thanks to its magic number of protons. It has two main allotropes: at room temperature, the stable allotrope is β-tin, a silvery-white, ...
mass.For example, tellurium comes before iodine in the periodic table, even though its atomic mass is slightly greater.Such anomalies are due to the relative abundance of the "isotopes" or varieties of each element.All the isotopes of a given element have the same number of protons, but ...
Step-by-Step Solution:1. Understanding Isotopes: - Isotopes are variants of a chemical element that have the same number of protons but different numbers of neutrons. This means they have the same atomic nu
Say if you were to use just hot air I don't believe it would be as effective as electrifying the air molecules this is what attracts the already present positively charged ions molecules thermal heated element this factor is one of the primary keys to unlocking this new type of ion engine...
What chemical element has 35 protons and 36 electrons? Which element has the lowest ionization energy? What is the electron configuration of calcium, which has 20 electrons? What is the valence electron configuration for the arsenic atom? Does the octet rule only apply to ...
The chemical reactivity of an element is largely determined by a. the number of protons in the nucleus of the atom. b. the number of neutrons in the nucleus of the atom. c. the number of electrons in the outer or Which of th...