calcium is an example of metals nonmetals in nigeria

Chapter 3 Metals and Non Mobile: 9999 249717 Head Office: 1/3-H-A-2, Street # 6, East Azad Nagar, Delhi-110051 (One Km from ‘Welcome Metro Station) Question 1: Give an example of a metal which (i) is a liquid at room temperature.

The Periodic Table | Chemistry - Lumen Learning

Identify metals, nonmetals, and metalloids by their properties and/or loion on the periodic table. As early chemists worked to purify ores and discovered more elements, they realized that various elements could be grouped together by their similar chemical behaviors. One such grouping includes lithium (Li), sodium (Na), and potassium (K

List of Mineral Resources in Nigeria and Their Loion

Jan 27, 2021· The only Talc plant in Nigeria is the Raw Materials Research Development Council (RMRDC). Talc is a mineral resource in Nigeria, it is found in some states in Nigeria like the Osun state, Kogi state, Oyo state, Niger state, and so many others. Talc deposits in Nigeria are estimated to be about 4 billion tonnes.

Metals: Types of Metals, Properties of Metals, Uses of Metals

Mar 17, 2015· These metals oxidizes easily as well as reacts with hydrogen chloride (HCl) to form hydrogen. Examples of base metals are iron, zinc and nickel. 2. Alloys : Alloys are mixtures of two or more elements in solid solution in which the major component is a metal. Example of alloys are brass ( copper and zinc ), steel ( iron and carbon ), etc. 3.

Assessment of Physicochemical Characteristics and some

Assessment of Physicochemical Characteristics and some Heavy Metals of Ossiomo River, Ologbo – A Tributary of Benin River, Southern Nigeria *1 IKHUORIAH, SO; ORONSAYE, CG. Department of Animal and Environmental Biology, Faculty of Life Sciences, University of Benin, P.M.B 1154, Edo state, Nigeria


The examples of metals are iron, copper, aluminium, calcium, magnesium, etc. In contrast, materials like coal and sulphur are soft and dull in appearance. They break down into a powdery mass on tapping with a hammer. They ar e not sonor ous and ar e poor conductors of heat and electricity. These materials are called non-metals. The examples of

List of Mineral Resources in Nigeria and Their Loion

Jan 27, 2021· The only Talc plant in Nigeria is the Raw Materials Research Development Council (RMRDC). Talc is a mineral resource in Nigeria, it is found in some states in Nigeria like the Osun state, Kogi state, Oyo state, Niger state, and so many others. Talc deposits in Nigeria are estimated to be about 4 billion tonnes.

Class 10 NCERT Solution Metals and Non-metals | FreeGuru

Question 4: Why are the two non-metals, carbon and hydrogen are important chemical reference points with regard to the method of metal extraction and reactivity towards acids. Answer: The six metals K, Na, Li, Ca, Mg, and Al, which lie above carbon in the activity series, cannot be extracted by carbon reduction: they are usually extracted by

Impacts of heavy metals and soil properties at a Nigerian

Jan 15, 2019· Heavy metal contamination is a serious problem worldwide threatening soil environment and human health. In the present study, concentrations of 6 heavy metals at an electronic waste (e-waste) site in Nigeria were correlated to their mobility, showing distinct distribution pattern between surface soils and subsoils.

Table Basics - Chemistry LibreTexts

Aug 15, 2020· Determine whether the following elements are metals, non-metals or metalloids: Calcium is a metal, phosphorus is a non-metal; silicon is a metalloid; krypton is a nonmetal; Identify the group and period that the following elements are in: Hydrogen is in group 1and period 1. Aluminum is in the group 13 but group 3 for the main group elements

List Of Metals And Non Metals | Science Trends

The metals list which makes up the periodic table includes iron, lead, gold, aluminum, platinum, uranium, zinc, lithium, sodium, tin, silver, etc. The nonmetals lis t which makes up the periodic table includes hydrogen, helium, carbon, sulfur, nitrogen, oxygen, radon, neon, other halogens, and noble gases etc. When we study the elements, it is

CBSE- Metals and Non-Metals-NCERT Solutions - Career Launcher

Non-metals gain electrons to form negative -ions. 2. Metals fon basic oxides. Nonmetals form acidic oxides. 3. Metals scan displace hydrogen from acids. Non-metals cannot displace hydrogen from acids. 4. All metals do not coine with hydrogen to form hydrides (except reactive metals like Na, K, Ca). All non-metals coine with hydrogen to form

The Effects of Metals as Endocrine Disruptors | Request PDF

For example, metals can mimic endogen hormone The physiochemical properties of Cd 2+ ions allow them to substitute for calcium ions in biological systems because of showing the same charge and

Properties of Metal, Non-metals and Metalloids with Videos

Most non-metals are brittle and are not malleable or ductile. At room temperature, they are usually solids or gases. They usually have low boiling and melting points (except carbon and boron). They are poor conductors of heat and electricity. They are usually less dense when compared to metals. They tend to gain electrons during chemical reactions.

Metals and Non-metals Class 10 Important Questions with

Metals and Non-metals Class 10 Important Questions Short Answer Type I. Question 1. Name the following: (2012) (a) A metal which is preserved in kerosene. (b) A lustrous coloured non metal. (c) A metal which can melt while kept on palm, (d) A metal, which …

Reaction of Metals and Non-metals with Oxygen - Concepts

May 20, 2020· Transcript. Reaction of Metals with Oxygen Metal + Oxygen Metal Oxide This is Basic in nature Example Magnesium + Oxygen (Mg) (O2) Magnesium Oxide (MgO) This Magnesium oxide is Basic in nature It turns red litmus paper blue Reaction of Iron with Moist air Iron + Oxygen + Water Iron Oxide (Fe) (O2) (H2O) (Fe2O3) Air with Moisture This is Rust This is basic in nature Reaction of …


At the end of this metals, nonmetals, and metalloids lesson plan, students will be able to compare metals, nonmetals, and metalloids using physical properties such as luster, conductivity, or malleability. Each lesson is designed using the 5E method of instruction to ensure maximum comprehension by the students. The following post will walk you through each of the […]

Extra Questions - Metals and Nonmetals - CBSE Class 10

Oct 23, 2019· Extra Questions on Metals and nonmetals Class 10 science will help you to practice and revise CBSE Syllabus more efficiently. You will learn whether Calcium is metal or nonmetal. Chemical properties of metals and non metals, According to new CBSE Exam Pattern, MCQ Questions for Class 10 Science pdf Carries 20 Marks.

Toxicity, mechanism and health effects of some heavy metals

Nov 15, 2014· Arsenic. Arsenic is one of the most important heavy metals causing disquiet from both ecological and individual health standpoints (Hughes et al., 1988).It has a semimetallic property, is prominently toxic and carcinogenic, and is extensively available in the form of oxides or sulfides or as a salt of iron, sodium, calcium, copper, etc. (Singh et al., 2007).

2.5: The Periodic Table - Chemistry LibreTexts

Sep 08, 2020· Metals, Nonmetals, and Semimetals. The heavy orange zigzag line running diagonally from the upper left to the lower right through groups 13–16 in Figure \(\PageIndex{1}\) divides the elements into metals (in blue, below and to the left of the line) and nonmetals (in bronze, above and to the right of the line). Gold-colored lements that lie along the diagonal line exhibit properties

The Chemistry of Nonmetals - Purdue University

The Nonmetals. There is a clear pattern in the chemistry of the main group metals: The main group metals are oxidized in all of their chemical reactions. These metals are oxidized when they react with nonmetal elements. Aluminum, for example, is oxidized by bromine. The chemistry of the nonmetals is more interesting because these elements can

Lead, mercury, cadmium, chromium, nickel, copper, zinc

Mar 01, 2013· Highlights We analyzed cement dust samples from Nigeria and United States of America for metals and hexavalent chromium [Cr (VI)]. Total Cu, Ni, Cr, Cr (VI) and Mn were significantly higher in USA cement dust sample. Nigeria cement dust contains higher concentrations of Cd, Pb and Hg. The studied samples contain metals that are known human carcinogens. The study reveals that …

The Contamination of Essential and Non-Essential Heavy

Africa, Ziabwe, Nigeria, Tanzania and Egypt. Heavy metals are non-biodegradable and persistent on the surfaces and then absorbed into the tissues of vegetables. Plants take up heavy metals by absorbing them from deposits on the parts of the plants exposed to the air from polluted environments as well as from contaminated soils.


Mar 01, 2018· Write one example of each of (i) a metal which is so soft that, it can be cut with knife and a non-metal which is the hardest sustance. (ii) a metal and a non-metal which exist as liquid at room temperature. Answer. (i) Sodium, carbon (diamond). (ii)Mercury is liquid metal, bromine is liquid non-metal…

NCERT Solutions for Class 10 Science Chapter 3 – Metals

Give reasons. (a) Platinum, gold and silver are used to make jewellery. (b) Sodium, potassium and lithium are stored under oil. (c) Aluminium is a highly reactive metal, yet it is used to make utensils for cooking. (d) Carbonate and sulphide ores are usually converted into oxides during the process of extraction.

Trace heavy metals composition of some Nigerian beverages

Aug 01, 1999· A recorded survey of beverages in Nigeria (Dada, Aiyesimoju, & Ajayi, 1982) was limited to the determination of calcium, magnesium, copper, zinc and iron contents of a few brands of cocoa-based beverages. The present study provides a more detailed determination of the contents of cadmium, cobalt, chromium, copper, iron, nickel, lead and zinc in

Concentration of Metal Pollutants in River Kubanni, Zaria

rusted metal roofs and carry domestic discharges, paints and roof of insulation debris from building as well as oil and coustion particles from automobile coustion, this is a good example of diffuse pollution. The greater challenges facing the water supply profession today are the control and removal of poisonous metal contaminants.