Periodic Table of the Elements Flashcards
The mass number of an element is the sum of its ____ and _____
protons and neutrons
What is the number of electrons in nitrogen?
7
A proton is
A positively charged particle
Sugar water would be an example of
a mixture
Which particles are found in the nucleus of an atom?
protons, neutrons
The atomic number is equal to
the number of electrons, the number of protons
What is the number of protons in carbon?
6
Column 1 elements like to form ___ by losing one of their electrons.
ions
The defining unit of any element, or the unit that lets you know what element a substance is, is the ____________________.
proton
The smallest particle of an element that still has all the properties of the element is called __________________.
an atom
According to the periodic table, the last column (18) are called the ________ ___________
noble gases
What group does carbon belong in?
non-metals
According to the periodic table, the first column (1) are mostly
alkali metals
According to the periodic table, the elements in the second column (2) are called the
alkaline metals
Fluorine would most likely ____________
gain an electron, bond with sodium, bond to itself
