Search results
Aug 13, 2023 · Answer: b) Transition metals (Groups 3-12) 14. The elements in the two rows at the bottom of the periodic table are called: a) Actinides and lanthanides. b) Noble gases and halogens. c) Alkali metals and alkaline earth metals. d) Metalloids and transition metals. Answer: a) Actinides and lanthanides. 15.
- What Is The Periodic table?
- What Are Groups and Periods in The Periodic table?
- What Are Periodic Table Trends Or Periodicity?
- Who Invented The Periodic table?
- Why Are The Noble Gases So Inert?
- Why Are The Halogens So Reactive?
- What Are The Periodic Table Groups?
Of course, the most basic question is “What is the periodic table?” The simple answer is that it is a chart that shows all of the chemical elements and basic facts about them, that orders the elements by increasing atomic number and common properties. The atomic number is the number of protons in every atom of the element. The number of neutrons in...
The way the periodic table organizes elements by properties is by putting them in rows, which are called periods, and columns, which are called groups. Elements in a period have the same outer electron shell, which gives them some common characteristics. Elements in a group have number of outer or valence electrons, again, giving them common proper...
Organizing the table with groups and periods makes certain trends in element properties apparent. In other words, the table displays periodicity (hence its name). There are several periodic table trends in properties, but the key ones are atomic radius, electronegativity, electron affinity, and ionization energy: 1. Atomic radius isthe size of an e...
While lots of scientists have made periodic tables over the years, the one that most closely resembles the table we use today was formulated by Dmitri Mendeleev. So, Mendeleev is considered the “inventor of the periodic table.” His 1869 tablediffered from the modern table in that it ordered elements by increasing atomic weight instead of atomic num...
While the noble gases sometimes do participate in chemical reactions, they are mostly unreactive and are exceptions to periodic table trends. The reason is that atoms of elements of this group have stable valence electron shells. In other words, the noble gas atoms become less stable if they lose or gain electrons.
The halogens(fluorine, chlorine, iodine, etc.) are as reactive as the noble gases are stable. This group is right next to the noble gases, so why is it so reactive? The reason is that they are only one electron away from having a stable configuration. Forming chemical bonds gives the halogens this stability.
While the periods of the periodic table just have numbers corresponding to their rows, the periodic table groups have both numbers and names. Probably the names arose because of the different numbering systems for the groups. The groups are the alkali metals, alkaline earth metals, transition metals, basic metals, metalloids, nonmetals, halogens, a...
5 days ago · periodic table, in chemistry, the organized array of all the chemical elements in order of increasing atomic number —i.e., the total number of protons in the atomic nucleus. When the chemical elements are thus arranged, there is a recurring pattern called the “periodic law” in their properties, in which elements in the same column (group ...
- The periodic table is a tabular array of the chemical elements organized by atomic number, from the element with the lowest atomic number, hydrogen...
- The groups of the periodic table are displayed as vertical columns numbered from 1 to 18. The elements in a group have very similar chemical proper...
- The arrangement of the elements in the periodic table comes from the electronic configuration of the elements. Because of the Pauli exclusion princ...
- The periodic table has two rows at the bottom that are usually split out from the main body of the table. These rows contain elements in the lantha...
Periodic Table Questions and Answers - Practice questions, MCQs, PYQs, NCERT Questions, Question Bank, Class 11 and Class 12 Questions, NCERT Exemplar Questions, and PDF Questions with answers, solutions, explanations, NCERT reference, and difficulty level in Periodic Table chemistry.
The periodic table is an arrangement of the elements in order of increasing atomic number. Elements that exhibit similar chemistry appear in vertical columns called groups (numbered 1–18 from left to right); the seven horizontal rows are called periods. Some of the groups have widely used common names, including the alkali metals (group 1 ...
Metalloids are located on or right next to the zigzag line. State the general characteristics of metals. 1. are solids at room temperature. 2. are malleable (can be hammered into thin sheets) 3. are ductile (can be drawn into wire) 4. have luster (shine) 5. are good conductors of heat and electricity. 6. have high melting and boiling points.
People also ask
What is the periodic table?
What does a periodic table tell you?
What is the purpose of the periodic table?
What are the two rows of 14 elements in the periodic table?
How does a periodic table work?
How many rows and columns are in a periodic table?
Question #14342. Question #06cac. The periodic table is the table that indexes all chemical elements. It is arranged in order of atomic size (Hydrogen, then Helium, then Lithium, etc.) which is determined by the number of protons in the element. The table is subdivided into periods (rows) and groups (columns) of elements that share common ...
![[Class 10 Term 2] The diagram below shows part of the periodic table](https://ca.images.search.yahoo.com/search/images?p=what+is+question+2+on+the+periodic+table&ei=UTF-8&th=111.3&tw=114.7&imgurl=https%3A%2F%2Fd1avenlh0i1xmr.cloudfront.net%2Ffb5a9be2-d89d-4521-b4a4-bc205b4a156b%2Fperiodic-table-of-elements-01-01.jpg&rurl=https%3A%2F%2Fwww.teachoo.com%2F16202%2F3701%2FQuestion-2%2Fcategory%2FCBSE-Class-10-Sample-Paper-for-2022-Boards--Term-2----Science-Solution%2F&size=831KB&name=%5BClass+10+Term+2%5D+The+diagram+below+shows+part+of+the+periodic+table&oid=2&h=3239&w=3336&turl=https%3A%2F%2Ftse1.mm.bing.net%2Fth%3Fid%3DOIP.xoL5dpyuJIsVRuQqD8QYRgHaHM%26pid%3DApi%26rs%3D1%26c%3D1%26qlt%3D95%26w%3D114%26h%3D111&tt=%5BClass+10+Term+2%5D+The+diagram+below+shows+part+of+the+periodic+table&sigr=I5TkKGaMqMwF&sigit=o0oWk5_MCQP4&sigi=CNSbTPEP_jTB&sign=L_Y_524S_rfI&sigt=L_Y_524S_rfI "[Class 10 Term 2] The diagram below shows part of the periodic table")
