What period 3 element having the following ionization energies (all in kJ/mol)y? IE1 - 1012 IE2 1900 IE3 2910 IE4 4960 IEs- 6270 IE6 22,200 A) Si
Full Answer
Which Period 3 has the highest ionization energy?
So, according to this, helium have highest ionisation potential among period 1, 2 and 3 elements.
What is the trend of ionization energy in period 3?
Ionization energy generally increases across period 3 because the nuclear charge increases but the shielding of the outer electrons remains relatively the same.
Which element in period 3 has the smallest ionization energy?
The answer is Sodium (Na).
What is the third period of the periodic table?
The third period contains eight elements: sodium, magnesium, aluminium, silicon, phosphorus, sulfur, chlorine, and argon. The first two, sodium and magnesium, are members of the s-block of the periodic table, while the others are members of the p-block.
What are the 3 periodic trends?
Periodic trends are patterns in elements on the periodic table. Major trends are electronegativity, ionization energy, electron affinity, atomic radius, and metallic character.
What are the trends of group 3 elements?
The general trend down Group 3 is from non-metallic to metallic character. Boron is a non-metal with a covalent network structure. The other elements are much larger than Boron and are more ionic and metallic in character.
Which member of the Period 3 is the most electronegative?
In Period 3, sodium with 11 protons is the least electronegative element, and chlorine with 17 protons is the most electronegative element. You might expect argon (with 18 electrons) to be the most electronegative element in Period 3.
Why do Group 3 elements have a lowest first ionization energy?
Since the outermost electrons are further away, they are less strongly attracted by the nucleus, and are easier to remove, corresponding to a lower value for the first ionization energy.
Which Period 3 element is the least metallic?
Now, sodium and magnesium belong to the same period and the metallic characteristics decrease along a period. Therefore, magnesium has the least metallic character among the given options.
Which element in period 3 is the most?
Sodium being the first element in the third period is the most metallic element, while chlorine is the most non-metallic element. However, argon is the last element in the third period but it has inert configuration due to which it doesn't either both metallic or non-metallic characters.
What are the 3 elements?
In the beginning, or at least following the Big Bang more than 14 billion years ago, there was hydrogen, some helium and a little bit of lithium.
What are the first three periods on the periodic table?
First there is the hydrogen period, consisting of the two elements hydrogen, 1, and helium, 2. Then there are two periods of eight elements each: the first short period, from lithium, 3, to neon, 10; and the second short period, from sodium, 11, to argon, 18.
What is the trend of electronegativity in period 3?
Description of trend The graph shows how electronegativity varies across period 3: as the atomic number increases, the electronegativity of the elements increases.
What is the trend in ionization energy in a period?
The ionization energy of the elements within a period generally increases from left to right. This is due to valence shell stability. The ionization energy of the elements within a group generally decreases from top to bottom.
What increases going across period 3?
Melting and boiling points increase across the three metals because of the increasing strength of their metallic bonds. The number of electrons which each atom can contribute to the delocalized "sea of electrons" increases.
What is the trend of atomic radius in period 3?
Atomic Radii The atomic radii decreases across Period 3. We can use the concept of effective nuclear charge (ENC) to explain the atomic radii. Note that effective nuclear charge is also used to explain first ionisation energy trend across Period 3.