What element from the first 10 elements would be most similar in properties to the element of atomic number 115 (presently unknown)? The first and second electron shells of an element are filled and there are two electrons in the third electron shell. What is the atomic number for this elem...
What element has an atomic number of 17? What element has an atomic number of 10? What element has the atomic number 27? What element has the atomic number 1? What element has the atomic number 53? What element has an atomic number of 18?
结果一 题目 What is the atomic number of an element?ps:Please answered in English 答案 译文,什么是元素的原子序数?It is the number of an element in thePeriodic table of the elements.相关推荐 1What is the atomic number of an element?ps:Please answered in English ...
To determine the formula of the oxide of the element X with atomic number 19, we can follow these steps:1. Identify the Element: - The atomic number 19 corresponds to the element Potassium (K).2. Determine th
An element Z has a valency of 3. What is the formula of its oxide? View Solution An element has atomic number 34. Its valency will be View Solution Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class 7, Class 8, Class 9, Class 10, Cl...
Every element has a unique atomic number. This is the number of protons in the nucleus of each atom. What is the atomic number of this helium atom? A neutral atom must have equal numbers of protons and electrons, so the atomic number of an element also gives ...
Hint: It has one electron! First Element of the Periodic Table: The periodic table is a table in which the chemical elements are arranged by atomic number. It starts with the element with the lowest atomic number all the way to the element with the highest atomic number, Ogane...
What each element has Solids, liquids, and gases that can not be broken down into something else The number of elements that exist Something that lists all of the elements What an element's atomic number does Skills Practiced Knowledge application - use your knowledge to answer questions...
The chemical element with atomic number 15 is phosphorus. What is the abbreviation for phosphorus? A. P B. Ph C. Po D. Py 相关知识点: 试题来源: 解析 A。磷元素的英文是 phosphorus,其缩写形式是 P。选项 B“Ph”一般不是磷元素的缩写;选项 C“Po”是钋元素的缩写;选项 D“Py”不是磷元素...
Each element on the periodic table has its ownatomic number. In fact, this number is how you can distinguish one element from another. The atomic number is simply thenumber of protonsinan atom. For this reason, it's sometimes called the proton number. In calculations, it is denoted by the...