Group 1 Metals are the most reactive metals on the periodic table and do not exist free in nature. Non-metals is essential for our life … Get the answers you need, now! Sodium. Non metal used to disinfect water. When cut, the exposed metal tarnishes quickly and forms a dull oxide coating. Materials: Metals and Non-Metals The lanthanides are soft metals that can be cut with a knife. Get the answers you need, now! • Cerium makes up 50 percent of an alloy called misch (MIHSH) metal. NCERT Class VIII Science - Exemplar Problems Chapter 4. Name two soft metals which can be cut with a knife. The proper answer is the alkali metals. Soft and can be cut with a knife. Carbon is a nonmetal, but not many knives can cut through diamond. Group 1 The Alkali Metals. ... metals like lithium,sodium and potassium can be cut with a knife because their melting point is low compared to other alkali metals. Relevance. Gold is soft, if it is fairly thin it can be cut with a knife. An element A is soft and can be cut with a knife. Name the following: 1. What soft metal can be cut with a dull knife, and can be explosive when exposed to water? Carbon is a nonmetal, but not many knives can cut through diamond. Soft and can be cut with a knife. These both are considered as soft metals. Sodium is a very soft metal that you can cut with a knife as are most other metals in its group. Alkali metals react with both oxygen and water. Sodium and potassium are exceptions to many of the metals chemical and physical properties Hope This Helps You! WCP. Metals which can be easily cut with a knife are-Sodium-Potassium. Low melting point (below 200 degrees celcius). An element A is soft and can be cut with a knife. What is a soft metal which can be cut by a knife hint- it is not a liquid material it is a solid form of material - Science - Materials Metals and Non-Metals Please help me!!!! Potassium also has a very low density and is the second least dense metal after lithium. The metals like sodium and potassium are so soft that they can be easily cut by using a knife.These metals although having having high reactivity, are having low tensile strength than any other metal. 3. It is so light that it can float in water. These both are considered as soft metals. Transition Elements 3 • The elements are so similar that they are hard to separate when they occur in the same ore, which they often do. The alkali metals have the following properties in common: they have low melting and boiling points compared to most other metals. Low melting point (below 200 degrees celcius). When it burns, it produces a pale purple colored flame. The metals like sodium and potassium are so soft that they can be easily cut by using a knife.These metals although having having high reactivity, are having low tensile strength than any other metal. Potassium has a very low melting point such that even a candle can cause it to melt. A non metal which is essential for life and can be inhaled during breathing. Low melting point (below 200 degrees celcius). ... sodium are soft and can be cut … Sodium is extremely soft and can be easily cut with a knife. Answer Save. He cut a small slice off as if it were cheese and plunged it into a container of water where it appeared to dance as it burned. They must be stored under oil or they will quickly oxidize . 2. Very soft. This is very reactive to air and cannot be kept open in air. 1.Name two soft metals that can be cut with a knife. It reacts vigorously with water. Soft and can be cut with a knife. Name two soft metals which can be cut with a knife. 10 Answers. 2. It is so soft that it can be easily cut with a knife. they are very soft and can be cut easily with a knife. Alkali metals react with both oxygen and water. Sodium is a very soft metal that can easily be cut with the help of a knife. Our chem teacher took a lump of metallic sodium out of a jar filled with oil. Low melting point (below 200 degrees celcius). metal which can be cut by knife? They have very low ionization energy and give up their outer s 1 electron very easily. • Despite the name rare earth, the lanthanides are not as rare as originally thought. They are very soft metals that can be cut with a knife. They are so soft that they can be easily cut with a knife . Two soft metals which can be cut with a knife. Soft and can be cut with a knife. It reacts vigorously with water. However the lower metals are only explosive when put in contact with a flame and water. Metals which can be easily cut with a knife are-Sodium-Potassium. The Group I metals are soft enough to dent with your fingernail: cesium (0.2), rubidium (0.3), potassium (0.4), sodium (0.5), lithium (0.6). This is very reactive to air and cannot be kept open in air. 0 0 0. The two metals are Sodium and potassium. Otherwise the just produce H2 gas. 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