Atom Basics
The nucleus if an atom contains what two subatomic particles ...?
What are protons and neutrons?
An atom of carbon whose mass number is 14 differs from an atom of carbon whose mass number is 12 in that it ....?
What is ... it has more neutrons in one of the isotopes of carbon than the other?
The horizontal rows of elements in the periodic table are called ...
What are periods?
Elements in the same family of the periodic table have similar (physical) or (chemical) properties ...?
What is chemical properties?
The electron was discovered by ...?
Who is John Dalton?
What information from the Periodic Table provides the number of protons in an atom?
What is the atomic number?
Conductors of heat and electricity, ductile, and malleable are all characteristics of ...?
What is a metal?
Elements on the left side of the periodic table are called ...
What are metals?
On the periodic table the number written below the symbol for an element is the ...?
What is the atomic mass?
If the atomic number of an element is 4 and its mass number is 9. What is the number of neutrons in the nucleus of this atom?
What is 5 neutrons?
Which group on the periodic table do the Halogens belong to?
What is ... group 7 of the main group elements 7A?
Elements that do not combine (react) with other elements except under specially controlled conditions belong to what group/family?
What are the nobel gases?
What are the elements on the far right, the last column of the periodic table called?
What are Nobel gases?
The gold foil experiment in which positive particles pass right through the foil, however where deflected back more often than originally expected ...
What is Rutherford's experiment?
Atoms of the same element may differ in their number of ...?
What is neutrons?
The british scientist that discovered the atomic number of elements is ...
Who is Henry Mosely?
Elements of the periodic table are arranged with similar chemical properties in what is referred to as?
What is columns or vertical columns?
The subatomic particle that moves around the nucleus is called ...?
What is an electron?
The scientist whose atomic model of the atom placed the electrons in "orbit" around the nucleus..,?
Who is Niels Bohr?
Given the number of protons, neutrons and electrons in an isotope of any given element, how do you calculate the atomic mass?
What is ... the sum of the number of protons and the number of neutrons ?
The periodic table is arranged by what (usually found at the top of each element square) ?
What is the atomic number of the element?
How did Mendeleev arrange the periodic table ?
What is increasing atomic mass?
Most elements on the Periodic table are ...?
What are metals?