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Science-chapter 8

QuestionAnswer
What is the number of protons plus the number of neutrons atomic mass
Russian chemist who produced the first periodic table of elements Dmitri Mendeleev
Table of elements, arranged by atomic number that shows the patterns in their properties Periodic Table
Vertical column in the periodic table-elements Group(or family)
Horizontal row in the periodic table-element properties Period(or series)
In an atom, the number of ____1____ is equal to the number of electrons 1.Protons
Space outside the nucleus where electrons orbit Shell
K shell holds how many electrons 2 electrons
The smallest particle of matter that displays the properties of an element Atom
A substance composed to only one kind of atom-it cannot be broken down into simpler substances by ordinary means Element
The center of the atom which contains protons and neutrons-has a positive charge Nucleus
Positive particle found in the nucleus of an atom Protons
The particle having no charge and found in the nucleus of an atom Neutron
The number of protons(electrons) in an atom-it is used to identify an element Atomic number
Happening at regular interval (Ex. The days of the week) Periodic pattern
A British scientist, determined the number of protons of an atom Henry Moseley
The repeating chemical and physical properties of elements change periodically with the elements' atomic number Periodic law
4 things in each box of the periodic table 1. Atomic number 2. Chemical symbol 3. Element name 4. Atomic mass
Created by: 15ellioa