Group 16 Group 16 Melting point Period 2 Boiling point Block p Density (g cm − 3 ) Atomic number 8 Relative atomic mass State at 20°C Gas Key isotopes.
In which group and period does oxygen lie?
In your case, oxygen, O , is located in group 16 of the Period Table. A cool thing to notice here is that because oxygen sits at the top of the group, i.e. in period 2, group 16 is also known as the oxygen family.
What group does oxygen belong to?
Group 6A — The Chalcogens. Group 6A (or VIA) of the periodic table are the chalcogens: the nonmetals oxygen (O), sulfur (S), and selenium (Se), the metalloid tellurium (Te), and the metal polonium (Po).
What element is in group 16 period 5?
Group 16 elements are chalcogens in which the element placed in the fifth period is -Tellurium. It is represented by the chemical symbol Te. Tellurium has atomic number 52 which contain 52 protons and electrons in a neutral state.
What element is in Group 6 period 4?
Its members are chromium (Cr), molybdenum (Mo), tungsten (W), and seaborgium (Sg). These are all transition metals and chromium, molybdenum and tungsten are refractory metals.
How is the element in Group 4 period 15?
Arsenic (As) is an element in group 15.
What is the period Number of potassium?
4 Group 1 Melting point Period 4 Boiling point Block s Density (g cm − 3 ) Atomic number 19 Relative atomic mass State at 20°C Solid Key isotopes.
What Colour is oxygen?
The gas is colorless, odorless, and tasteless. The liquid and solid forms are a pale blue color and are strongly paramagnetic.
What is the mass of oxygen?
What is the Lewis dot symbol of oxygen?
Each O is surrounded by four dots and two sticks or lines, representing another 4 electrons in the O2 double bond. So each O is surrounded by 8 total valence electrons, giving it an octet and making it stable. The two letter O’s in the O2 Lewis structure represent the nuclei (centers) of the oxygen atoms.
Which element is found in group 11 Period 6?
Gold (Au), chemical element, a dense lustrous yellow precious metal of Group 11 (Ib), Period 6, of the periodic table.
What are the elements of oxygen?
oxygen group element, also called chalcogen, any of the six chemical elements making up Group 16 (VIa) of the periodic classification—namely, oxygen (O), sulfur (S), selenium (Se), tellurium (Te), polonium (Po), and livermorium (Lv).
Why is Group 16 called chalcogens?
-Group-16 elements are also called chalcogens. They are called so because most of the copper ores have copper in the form of oxides and sulphides. They also contain small amounts of selenium and tellurium. The ores of copper are called ‘chalcos’ in Greek.
What element is in Group 12 and Period 6?
Zinc group element, any of the four chemical elements that constitute Group 12 (IIb) of the periodic table—namely, zinc (Zn), cadmium (Cd), mercury (Hg), and copernicium (Cn).
Which element is in period 5 Group 7?
The Group 7A elements have seven valence electrons in their highest-energy orbitals (ns2np5). This is one electron away from having a full octet of eight electrons, so these elements tend to form anions having -1 charges, known as halides: fluoride, F–; chloride, Cl–, bromide, Br–, and iodide, I–.Group 7A — The Halogens. (4) (5) (6) (7).
Which element is in group 14 Period 5?
Tin. Tin is a chemical element with the symbol Sn (for Latin: stannum) and atomic number 50. It is a main-group metal in group 14 of the periodic table.
What element is in Group 15 and Period 3?
Phosphorus Element # Symbol Phosphorus 15 P Sulfur 16 S Chlorine 17 Cl Argon 18 Ar.
What element is in Group 15 and Period 2?
Group 15 contains Nitrogen and if you come up too fast from deep sea diving it gives you the “bends” which is when nitrogen bubbles in your blood.
What are the 15 elements?
Periodic Trends Element/Symbol Atomic Number Mass Nitrogen (N) 7 14.01 Phosphorus (P) 15 30.97 Arsenic (As) 33 74.92 Antimony (Sb) 51 121.76.
What is the color of potassium?
Potassium metal is soft and white with a silvery lustre, has a low melting point, and is a good conductor of heat and electricity. Potassium imparts a lavender colour to a flame, and its vapour is green. It is the seventh most abundant element in Earth’s crust, constituting 2.6 percent of its mass.
Why is potassium in the 4th period?
It has four shells so it belongs to the period 4 . The period 4 has elements with the 4th shell being filled. Potassium has 1 electron in its valence shell. Hence, it is placed in group 1.
Where is potassium found on Earth?
Where is potassium found on Earth? Because potassium reacts so readily with water, it is not found in its elemental form in nature. Instead it is found in various minerals such as sylvite, carnallite, langbeinite, and kainite. Most minerals that contain potassium are referred to as potash.
What is the smell of oxygen?
Why is O2 (Oxygen) colorless and odorless while O3 (Ozone) is a pale blue gas with a distinctively pungent smell? – Chemistry Stack Exchange.
What color is liquid oxygen?
Why liquid oxygen is blue.
Can oxygen change color?
When exposed to oxygen, it turns blue, deepening in intensity with increased ingress. The rate of the color change is proportional to the rate of oxygen entering the package and can be correlated to conventional oxygen transmission rates.
What does 15.999 Tell us in oxygen?
This number is a combination of all the known Isotopes and basically tells you the average mass you would expect per atom if you grabbed a random handful of them. In this case Oxygen has a Weighted Average Atomic Mass of 15.999 AMU.
What is the mass of one mole of oxygen?
Moles of a Substance and the Molecular Weight The mass of oxygen equal to one mole of oxygen is 15.998 grams and the mass of one mole of hydrogen is 1.008 g.
What is the correct dot diagram for oxygen?
The electron dot diagram for an element shows the valence electrons for the element. Oxygen is in group 16/VIA, so it has six valence electrons. Draw the symbol for oxygen. Then place one dot at each side of the symbol.
Which of the following is the best Lewis symbol for oxygen?
Which is the best Lewis symbol for oxygen? For part A the answer is D because Oxygen has 6 valence electronsand can form up to 2 bonds.
Which element is in group 10 Period 6?
Which element is in group 10 Period 6? Group 10, numbered by current IUPAC style, is the group of chemical elements in the periodic table that consists of nickel (Ni), palladium (Pd), platinum (Pt), and perhaps also the chemically uncharacterized darmstadtium (Ds).
What is the element in Group 18 and Period 6?
Period 6 Group 1 18 Atomic # Name 55 Cs 86 Rn.
Which element is in Group 1 Period 7?
A period 7 element is one of the chemical elements in the seventh row (or period) of the periodic table of the chemical elements.Period 7 element. Hydrogen Caesium Barium Lutetium Hafnium Tantalum.