Which is a property of the elements in groups 1 and 2?
Reactivity is a chemical property that determines how elements will react with others to form compounds. The most reactive metals are the elements in Groups 1 and 2.
What are the properties in group 1?
The elements in group 1 are called the alkali metals . are soft (they can be cut with a knife) have relatively low melting points. have low densities.
What is the difference between group 1 and 2 elements?
The key difference between group 1 and group 2 elements is that all group 1 elements have unpaired electrons in their outermost orbital, whereas group 2 elements have paired electrons in their outermost orbital. The group 1 and 2 differs from each other depending on the number of electrons in their outermost orbital.
What are the properties of Group 2 in the periodic table?
The Group 2 alkaline earth metals include Beryllium, Magnesium, Calcium, Barium, Strontium and Radium and are soft, silver metals that are less metallic in character than the Group 1 Alkali Metals.
What are the properties of Group 4 elements?
What are the Characteristics of Group 4 Elements
|Atomic radius||140 pm||155 pm|
|Boiling point||3560 K (3287 °C)||4876 K (4603 °C)|
|Melting point||1941 K (1668 °C)||2506 K (2233 °C)|
|Density||4.507 g·cm−3||13.31 g·cm−3|
What is Group 1 and group 2 in Tnpsc?
A list of TNPSC Exams in 2019 is given below: Combined Civil Services Examination – I (Group 1 Services) Combined Civil Services Examination – II (Group 2 and 2 A Services) Combined Civil Services Examination – IV (Group 4 Services and VAO)
What are the 2nd group elements?
alkaline-earth metal, any of the six chemical elements that comprise Group 2 (IIa) of the periodic table. The elements are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra).
What is Group 2 called What are the common properties of this group?
Group 2 elements are located on the left side of the periodic table and are often referred to as alkaline earth metals because they form an alkaline solution with water, are found naturally in the earth, and are metals. This group includes beryllium, magnesium, calcium, strontium, barium, and radium.
How are the elements of music related to each other?
not present ELEMENT Basic Related Terms Rhythm: (beat, meter, tempo, syncopation) Dynamics: (forte, piano, [etc.], crescendo, decres Melody: (pitch, theme, conjunct, disjunct) Harmony: (chord, progression, consonance, dissona
How are Group 1 and Group 2 elements different?
The key difference between group 1 and group 2 elements is that all group 1 elements have unpaired electrons in their outermost orbital, whereas group 2 elements have paired electrons in their outermost orbital. Groups 1 and 2 of the periodic table contain s block elements.
What are the eight elements that make up music?
Music has eight elements that composers and performers manipulate to create pieces that stir hearts and minds. The elements—rhythm, dynamics, melody, harmony, tone color, texture, form and text—form the “language of music” and influence our interpretations of what we hear. Element No. 1: Rhythm
What are the basic building blocks of music?
Anyone who appreciates music will benefit from learning how to identify music’s building blocks. Music may be soft or loud, slow or fast, and regular or irregular in tempo—all of these are evidence of a performer interpreting a composition’s elements or parameters.