What is the group number for halogens? What is the lightest particle of an atom? What is unique about halogens? Which element can be classified as a metalloaa. Which element can be classified as a metalloid and a halogen? b. Which transition metal always has a +2 oxidation number?id ...
What is the group number and number of valence electrons for potassium? How many valence electrons does lithium (Li) have? Each Group 16 element has how many valence electrons? a. 4 b. 6 c. 8 d. 16 In which group do all the elements have the same number of valence electro...
Why are group 16 elements called chalcogens ? 02:42 What is the outer shell electronic configuration of chalcogens? 01:43 Name the allotropes of oxygen. 03:33 Which element of group 16 has maximum tendency for catenation ? 05:24 Ionisation enthalpy of nitrogen is more than oxygen because ...
The scientific study of matter's characteristics and behaviour is known as chemistry.andare different from the normal vocabulary. It is a branch of natural science that examines the building blocks of matter, including the atoms, molecules, and ions that make up compounds and their composition, s...
Which group of nonmetals is the most chemically active? Halogens – Group 7A or 17 The most active element of the group is Fluorine! Write the Lewis structure for O2 The composition of a compound contains only C, O, and Hatoms. What type of bond does the compound have? All NON-Metals...
Strontium is a chemical element having the symbol Sr and atomic number 38. It is an alkaline earth metal in group 2 and period 5 of the periodic table. It is a solid at standard temperature and pressure. The melting point of strontium is high (1050 K), and the boiling point is also ...
1. Identify the Group: - Chalcogens are located in Group 16 of the periodic table. 2. List the Elements: - The elements in Group 16 are: - Oxygen (O) - Sulfur (S) - Selenium (Se) - Tellurium (Te) 3. Determine the Atomic Numbers: - Oxygen (O) has an atomic number of 8....
2- = Chalcogens (Group 6A) 44 g/mole In the periodic table, what group of elements has the most stable valence electron configuration in the ground state? Using the electronegativity values on p 263, how would you know if the bond between two atoms is ionic? Show how you determine the...
Question: From the periodic table, what is the atomic number of aluminum? (a) 26.98 (b) 13 (c) 18 (d) 39.95 Elements: Elements are pure substances composed of only one type of atoms. They can exist in multiple isotopic forms which can vary in the number of neutron...
What is the total number of valence electrons in the ion SO42−? a. 32 b. 28 c. 30 d. 26 Chalcogens: The group 16 elements are also called the chalcogens and include nonmetals (oxygen, sulfur, and selenium), metalloids (tellurium and polonium), and the synth...