Electronic configuration of sulphur: 1s2, 2s2, 2p6, 3s2, 3p4 Since the last sub-shell is P, it is placed in the P block of the periodic table.

X2 - 2x - 8 = 0 or, x2 - 4x + 2x - 8 = 0 or, x(x - 4) + 2(x - 4) = 0 or, (x - 4)(x + 2) = 0  Either, x - 4 = 0 i.e x = 4  or, x + 2 = 0 i.e x = -2  … Read more

11. The atomic number of an element is equal to its total number of protons, and in a stable element, number of electrons and protons are equal.

23 X 6.02 x 10^23

Iodine must accept an electron to become stable.

1. Homogenous mixture 2. Heterogenous mixture

There are three isotopes of hydrogen and they differ from each other in their mass number. Mass number of hydrogen is 1, that is deuterium is 2 and tritium is 3.

- Machines deteriorate over time due to unnecessary friction production during work. - Wastage of energy due to use of additional fuel. - movement of things and vehicles become difficult and energy-consuming due to effects of friction

Yes. It reacts with other elements by forming covalent bonds.

Fe + CuSO4 = FeS04 + Cu Here, valency of iron is 2.

Scientists are still scratching their head on this one, but two of the main reasons may be these: 1. Chemical reactions occur because the products of the reaction have less energy than the reactants (drive towards less energy). 2. It also occur because the products are more random (less ordered) than the reactants (drive towards … Read more

Calcium hydroxide, CA(OH)2, also known as slaked lime, is formed. CaO + H2O = CA(OH)2

Na2CO3 + H2SO4 = NA2SO4 + H2CO3

The ''s'' sublevel can have 2 electrons maximum. The ''p'' sublevel can have 6 electrons maximum The ''d'' sublevel can have 10 electrons maximum. The ''f'' sublevel can have 14 electrons maximum.

In this formula, there's 2 atoms of hydrogen, one atom of sulphur and four atoms of oxygen. So in total there are 7 atoms.

In animal cell, its located at the centre, but in plant cell, because of the presence of vacuoles, its located at some distance from the centre.

An autobiography is when a person himself writes his own life-story. A mere story, on the other hand, can be anything at all, whether a narration of an incident or a series of incidents in first or third person, fiction, non-fiction etc.

10% of 250,000 = 10/100 X 250,000 = 25,000

Steven Gerrard, so far during his time at Liverpool, has won a total of 10 trophies, including: FA Cup (twice) League Cup (twice) FA Community Shield (twice) UEFA Champions League (once) UEFA Cup (once) UEFA Super Cup (twice) If you wish to exclude the FA Community Shield titles, then he's won 8 trophies so far.

The basic elements of good behaviour are included in Islamic teachings: Behave with modesty, politeness, courtesy; don't insult others, don't back-bite, don't hurl abuses, don't be arrogant or proud, don't cheat etc. Good behaviour is highly recommended in the Islam religion. According to Muhammad (pbuh): ''Good behaviour is a virtue.'' When asked for which qualities … Read more