The symbol that represents silver on the periodic table is this.
What is Ag?
Potassium is an example of this kind of element.
What is a metal?
Isotopes of an element all have the same number of these, but a different number of these.
What are protons and neutrons?
Two additional names for group 1A of the periodic table are...
What are group 1 and the Alkali Metals?
This is the smallest of the three main subatomic particles.
What is an electron?
Fe is the symbol for this element.
What is Iron?
Selenium is an example of this type of element.
What is a nonmetal?
The mass number of an element is representative of this.
What is the total number of protons and neutrons in an atom of that element?
List at least 3 of The Alkaline Earth Metals.
What are Beryllium, Magnesium, Calcium, Strontium, Barium, and Radium?
This particle has a positive charge and is found in the nucleus of an atom.
What is a proton?
P is the symbol for this element.
What is phosphorus?
Semiconductors touch the line separating metals from nonmetals and are also known as this.
What are metalloids?
The atomic mass of an element is this.
What is a weighted average of all of the isotopes of that element?
The Lanthanides and Actinides are actually part of these two periods.
What are periods 6 and 7?
This particle has no charge, but has a mass nearly equal to a positively charged particle.
What is a neutron?
Sodium Lauryl Sulphate is a compound used in many hygiene products and cosmetics. Its chemical formula is C12H25SO4Na. The elements represented in this formula are...
What are carbon, hydrogen, sulfur, oxygen and sodium?
The metals that are found between the Alkaline Earth Metals and the metalloids are called this.
What are transition elements?
The number of elements that occur naturally is ...
What is 88 to 98, depending on whom you ask?
All of the elements in this group readily for salts when combined with metals because they only lack one electron for a full octet.
What are the halogens, or group 7A, or group 17?
The mass of an atom is measured in amu's which are also called this, in honor of the scientist who first formulated the atomic theory.
What is a Dalton?
Wiklundite is a rare and complex arsenite-silicate mineral with the chemical formula Pb2(Mn2+,Zn)3(Fe3+,Mn2+)2(Mn2+,Mg)19(As3+O3)2(Si,As5+O4)6(OH)18Cl6. The elements represented in this formula are...
What are Lead, Manganese, Zinc, Iron, Magnesium, Arsenic, Oxygen, Silicon, Hydrogen and Chlorine?
Give an example of a transition element, an Alkaline Earth metal, an Alkaline metal, a metalloid, a nonmetal, and a Noble gas.
What are...(responses will vary)
There are this many elements known today.
What is 118?
The symbol of the element in period 5, group 6A(16) is this.
What is Te for Tellurium?
The Rutherford gold foil experiment proved this.
What is that atoms consist of a dense, positively charged nucleus surrounded mostly by empty space?