In nature, the noble gases exist as A the sulfides B) the gaseous fluorides c) monatomic gaseous atoms D alkali metal salts E) solids in rocks and in minerals

Q: The metals belonging to Group 1A form ions with a charge of ...

A: Group 1A elements -> Hydrogen, Lithium, Sodium, Potassium, Rubidium, Cesium & Francium. All…

Q: why the discovery of noble gases was late?

A: The discovery of noble gases was late.

Q: On another planet, the isotopes of titanium have the given natural abundances. Isotope Abundance…

A: The average atomic mass of three isotopes can be calculated using the following expression:

Q: What is the formula of the compound in which the atom combining ratios are: sodium : fluorine = 1 :…

A:

Q: Part 2: Color land labell each section of the Representative Elements a unique shade. Color the…

A: Representative elements are main group elements. They are s-block and p-block elements. There are…

Q: The chemical formula when Cr(II) combines with CO3² Express your answer as a chemical formula.

A: A chemical formula indicates the elements and their proportions in a compound.According to question,…

Q: How do I find the radii of an atom when the prompt provides its density and what element the atom…

A:

Q: 72. State the predicted ionic charge of nonmetal ions in each of the following groups of elements.…

A: Given  Group 14 , Group 15 ,Group 16 ,Group 17 ionic charge in these group element = ?

Q: A 16.60 gram sample of chromium is heated in the presence of excess sulfur. A metal sulfide is…

A: Given that : Mass of Cr = 16.60g Mass of S =(Total mass of Metal sulfide - Mass of Cr) = (39.5g -…

Q: Part A What is the atomic number of the element located in group 16, period 2 of the periodic table?…

A:

Q: A new element is discovered. The new element is named Tucsonium and has the chemical symbol Tu. It…

A:

Q: You have made up a new non-metal element, Lolium, and produced a gaseous compound from it with a…

A:

Q: What is the major problem with the equation Ca (s) + 2 H₂O (1) --> Ca(OH)2 (aq) + H₂ (g)? Select…

A: When calcium reacts with water, it results in the production of hydrogen gas and calcium hydroxide.…

Q: What do you mean by deuterium ? how it is symbolized ?

A: Given term,           Deuterium

Q: 1A H2A hat is the ch 0 F Ne S Cl Ar Ge As Se Br Kr IXe Sn Sb Te Rb Sr Y Zr Nb Mo Tc Ru Rh Cs Ba La…

A:

Q: what is the formula for this...   Pb2+ and SO42-

A: There are two given ions. One with +2 charge and other with -2 charge.

Q: An atom has the electron-dot symbol shown below. If this atom is a main group element, what charge…

A: The number of valance electrons of an element is an important characteristic of an element. The…

Q: Which of these elements would be predicted to form an anion when ionized

A:

Q: This group of elements is the most reactive of all the non-metals  A) rare earths B) halogens C)…

A:

Q: Name the compounds of  NI3 , P4S3

A:

Q: 5) Consider an atom of the element nitrogen (N). A nitrogen anion can be formed fr this atom by a)…

A: Anion is negatively charged species.

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.