0
What else can I help you with?
What is the difference between foundriesand boundaries?
A foundry - is a factory that manufactures metals. A boundary - is a border between two places or objects !
Why are silicon and germanium called semi-metals?
Silicon and germanium are called semi-metals because they have properties of both metals and non-metals. They can conduct electricity like metals but not as well, and they can behave as insulators depending on the conditions. This intermediate behavior places them in a category between metals and non-metals.
Where are several places where carbon hydrogen oxygen and nitrogen commonly found?
places
Where are places for extracting metals and chemicals?
Mineral ores,coal
Where are 2 places multivalent metals are on the periodic table?
Two places on the periodic table where multivalent metals are located are Group 4 (e.g. Titanium, Zirconium) and Group 13 (e.g. Aluminum, Gallium). These metals can exhibit different oxidation states, hence being multivalent.
Why metals have higher conductivity?
because metals have strongly fixed electrons which can conduct heat and electricity by vibrating at their fixed places
Why is hydrogen not considered a member of group 1?
Group number indicates the number of valence electrons or outer electronic configuration. Group 1A elements such as H, Li, K,etc. have 1 valency. Hydrogen also has only one electron. Therfore it is placed in Group 1.Also, as its atomic number is 1,it is first in the periodic table.Metals have a tendency to donate their valence electrons and form positive ions. Hydrogen also forms a cation generally. Element Sodium (2,8,1) forms a positive ion by donating its 1 electron to Chlorine (2,8,7). Hydrogen also possess the properties of alkali metals as well as halogens, therefore some modern periodic tables have discarded hydrogen or taken as an unimportant element in the table.Hope this answer would prove useful to you.
Why are elements grouped as metalloids?
some metals in the periodic table like antimony show the characters of both metals and non metals in their chemical reactions so that they cannot actually be labelled as a METAL or NON METAL.hence they are grouped as metalloids
Where are the metals nonmetals noble gases and semi metals locates?
In various places and in various quantities throughout the universe. You need to be more specific.
Can hydrogen with one electron exist as a hydrogen solid in places of very high pressure?
Metallic Hydrogen is thought to exist in the core of Jupiter and Saturn, so yes.
Does periodic table have hydrogen?
Nowadays usually put in the same group as the alkali metals, group1. Hydrogen is an odd-ball elemnt. It shares no characteristics aprt from 1 electron in valence shell with the alkali metals. Some older versions put in TWO places, with the alkali metals (group1) and with the halogens, group 17. Reasonable as H loses one electron (like a group 1) and gains one (like a halogen) when it forms the hydride ion.
Is hydrogen is the source of energy?
the answer is yes because if the world ends then hydrogen is an energy source and in some places people are using it already
