Which atom has the largest number of neutrons? What element in the second period has the largest atomic radius? Which element has the highest electronegativity? What is the heaviest element on the periodic table? Which element in period 4 has the highest electronegativity?
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 bromine ion contains 35 protons, 35 neutrons, and 36 electrons. What is the net charge of the ion? For a neutral atom of element 37, what would be the probable ground-state electronic configuration? In your expression for the configuration, list the subshells in order of filli...
An atom consists of a nucleus, which contains protons and neutrons, surrounded by electrons. The number of protons determines the element of the atom, while the number of neutrons can vary. Electrons exist in energy levels or shells around the nucleus. 开学特惠 开通会员专享超值优惠 助力考试高...
- The element uranium having the atomic number Z = 92 have been irradiated with many slow neutrons and many new radioactive elements up to Z = 112 and earlier it has been named as ununbium but now its names have been discovered and is now as Copernicium (Cn)...
The resulting atom: 1) must be very reactive chemically 2) has an atomic number that is one more than that of X 3) has a mass number that is one less than that of X 4) must be radioactive 5) is the same chemical element as X Q13) Radon-222 is a gas produced by alpha decay....
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
1, is constructed of a plurality of cubeshaped graphite blocks, and each block has a coolant tube passage 24 and fuel passages 26 parallel or perpendicular to the coolant tube. The fuel element is placed in an atmosphere of carbon monoxide, helium or nitrogen and is contained in containers ...
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...
An element crystallizes in a body-centered cubic lattice. The edge of the unit cell is 286 pm, and the density is 7.92 cm3. What is the atomic mass of the element? Calculate the density of atoms in (001) in Lithium answer i...