Atoms and the Periodic Table Flashcards
(26 cards)
Atoms are made up of smaller particles called?
subatomic particles
The horizontal row of elements in the periodic table
period
Majority type of elements in the periodic table
metals
What serves as the reference point in calculating atomic mass
carbon
A tabular arrangement of the elements in order of increasing atomic number
periodic table
What are the four group of elements?
Alkaline earth metal, alkali metal, halogens, noble gases
Any subatomic particles that is found in the nucleus of an atom
nucleon
A pure substance in which all atoms present have the same atomic number
element
A region of space within an electron shell that contains electrons that have the same energy
subshell
In maximum, how many electrons can an orbital accommodate?
2 electrons
It has same number of protons and electrons but different number of neutrons
isotopes
How many valence electrons does Na have?
1
What is a group in the periodic table?
vertical; has the same chemical properties
The number of protons in the nucleus of an atom
atomic number
In maximum, how many electrons does the p subshell can accommodate?
6
The small particles that makes up all matter
atoms
Where can you find the protons and neutrons of an atom?
center (nucleus)
Elements that have similar chemical properties are positioned in what?
vertical column
It is the calculated average mass for the isotopes of an element, expressed on a scale
atomic mass
What is the charge of an atom as a whole?
neutral
As the periodic law states, elements are arranged in what order? And elements with similar chemical properties occur how?
increasing atomic number; periodic intervals
The number of protons and neutrons in the nucleus of an atom
mass number
It is the statement of how many electrons an atom has in each of its subshell
electron configuration
True or false: A nonmetal is an element characterized by the presence of properties of luster, thermal conductivity, electrical conductivity, and malleability
False
