To determine which of the elements P, Q, R, and S are reactive non-metals based on their atomic numbers (11, 15, 17, and 18 respectively), we can follow these steps:Step 1: Identify the elements - Element P: At
She was a public school teacher and administrator for 11 years.Cite this lesson Learn about the different elements that compose all matter in the universe. Explore what defines elements, their states of matter, the atomic number and symbol of the elements, and how they are arranged on the ...
To classify the elements E, F, and G with atomic numbers 19, 8, and 17 respectively as metals or non-metals, we will analyze their electronic configurations and their tendencies to lose or gain electrons.1. Identify the Elements:</stron
In aqueous solutions, ions of these elements behave as ''normal'' trivalent actinides and lanthanides (except for nobelium). Their ionic radii decrease with increasing nuclear charge which is moderated because of increased screening of the outer 6p electrons by the 5f electrons. These relative ...
Answer and Explanation:1 The atoms of different elements differ in the number of protons contained in the nucleus of their atoms. They can have the same number of neutrons and... Learn more about this topic: Atomic & Mass Number | Overview & Difference ...
62K The periodic table contains information about elements, such as their symbol, atomic number, and atomic mass. Understand the structure and uses of the periodic table and learn about the order and groups of elements. Related to this QuestionHow...
In the modern periodic table, the elements are arranged according to their atomic number - not their relative atomic mass . In the periodic table the elements
Mendeleev arranged the elements in order of increasing relative atomic mass . When he did this he noted that the chemical properties of the elements and their
Check complete information about Variable Valency like Definition, Examples, Elements, and more details here.
The atomic number of an element which shows a valency of+3is View Solution The atomic numbers of elements A, B, C, D and E are given below : From the above table, answer the following questions - (a) Which two elements are chemically similar ? (b) Which is an inert gas ?