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Do elements compounds and mixtures have fix melting and boiling point?
Elements have fixed melting and boiling points, while compounds have varying melting and boiling points depending on their composition. Mixtures do not have fixed melting and boiling points, as they are composed of multiple substances which each have their own individual melting and boiling points.
Is a transition element a soft metal?
Transition elements are not typically considered soft metals. They usually have high melting points and are known for their hardness and strength. However, some transition metals can exhibit softer characteristics depending on how they are processed or alloyed with other metals.
How does the melting point of elements vary across thegroups?
Melting point trends on the periodic table can be understood in a crude way using the following rule of thumb: The stronger the forces that act between molecules of a substance, the higher the melting point tends to be.The trends are very complex because many different factors influence the forces between atoms (or molecules) in an element. Notice that for each period beyond the first, the melting point rises to a maximum somewhere around the middle of the period and then falls off to a minimum value at the end of the period.The melting points of the first period elements are extremely low, because forces between H2 molecules and between helium atoms are exceptionally weak.In the second period, there is a gradual transition from relatively weak metallic bonding in lithium to strong network covalent bonding in carbon. Nitrogen, oxygen, and fluorine also form strong covalent bonds but they can't form networks of bonds the way carbon does. Atoms of these elements pair up to form diatomic molecules. While the attractive forces within atoms in the diatomic gas molecules is strong, the forces between molecules is very weak. That causes the sharp dropoff in melting point after carbon in the second period.The trend is repeated in a more subdued way in the third period. There is a jump in melting point from aluminum to silicon where bonding changes from primarily metallic to more covalent. P and S are better able to link into chains and rings than their second period counterparts, and have much higher melting points than N2 and O2. In the fourth period, the rise and fall of melting points across the period is even more muted. Note the discontinuity going from gallium (Ga) to germanium (Ge) at the metal/metalloid border.
Which group contains elements with the most varied properties?
The transition metal group contains elements with the most varied properties. This is because transition metals have multiple oxidation states, can form colorful compounds, exhibit catalytic properties, and have high melting points among other characteristics.
What are III group elements in periodic table?
Group III elements in the periodic table are boron (B), aluminum (Al), gallium (Ga), indium (In), and thallium (Tl). They are metallic elements with varying properties, such as being good conductors of electricity and having low melting points. These elements are commonly used in a variety of applications, from electronics to alloys.
Do most transition metals have higher or lower melting points than the representative elements?
Yes, transition metals have higher melting points. This is due to having very strong bonds. This means that a larger amount of energy is needed in order to break them down or bring them to the melting points.
Why is the melting and boiling points of mercury the lowest in its period?
Mercury has the lowest melting and boiling points in its period because it is a transition metal with a relatively small atomic size and weak metallic bonding. This results in weaker forces holding the atoms together, making it easier for the metal to transition between solid and liquid states at lower temperatures compared to other elements in the same period.
What is the general trend of the melting points of elements on the periodic table?
The general trend of melting points of elements on the periodic table increases from left to right across a period and decreases down a group.
What is the name given to a row of elements in the periodic table with densities and melting points that change gradually and predictably?
This is a period.
Do amorphous solids have specific melting points?
They have a glass transition.
Do elements compounds and mixtures have fix melting and boiling point?
Elements have fixed melting and boiling points, while compounds have varying melting and boiling points depending on their composition. Mixtures do not have fixed melting and boiling points, as they are composed of multiple substances which each have their own individual melting and boiling points.
What are the properties and characteristics of transition elements on the periodic table?
Transition elements are located in the middle of the periodic table and have unique properties. They often have multiple oxidation states, form colorful compounds, and can act as catalysts in chemical reactions. Transition elements also tend to have high melting and boiling points, as well as high densities.
Why do metals share properties with other transition metals in their period?
The physical properties of transition metals are determined by their electron configurations. Most transition metals are hard solids with relatively high melting and boiling points. Differences in properties among transition metals are based on the ability of unpaired d electrons to move into the valence level. The more unpaired electrons in the d sublevel, the greater the hardness and the higher the melting and boiling points.
Which set of properties is most characterictic of transition elements?
Colored ions in solution, multiple positive oxidation states.
What is the group 3b-12b elements know as?
The group 3b-12b elements are known as the transition metals. They are characterized by their ability to form colorful compounds, exhibit variable oxidation states, and have high melting and boiling points. Many transition metals are used in industrial applications and play important roles in biological systems.
How high can melting points get?
At 6000K all elements will turn into a gas.there could be hundreds of unknown elements in space so there could be even higher melting points
What is the sixth period transition element with properties similar to Ni?
Palladium (Pd) is the sixth period transition element with properties similar to nickel (Ni). They both have similar atomic size, melting points, and ability to form complexes with ligands due to their filled d orbitals.
