Physical Science Crossword

Smallest unit of an element retaining all of the properties of the element
It is an English scientist who is well known for his work in the development of the atomic theory
The number of protons in the nucleus of an atom
The total number of protons and neutrons in the nucleus
Atomic structure housing the protons and neutrons
Positively charged subatomic particle
Negatively charged subatomic particle
It is the third subatomic particle
Discovered the nucleus of an atom
Atoms of the same element that have different masses
He discovered proton
He discovered neutron
He discovered electron
What element is Si?
What element is Na?
What element is S?
a table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure appear in vertical columns
It include elements having atomic numbers 57
He is a German physicist and discovered the periodic table of elements
He is a Russian Chemist and discovered the periodic table of elements
It is distribution of electrons of an atom or molecule in atomic or molecular orbitals
It has some of the properties of metals and nonmetallic characteristic
It is usually solid at room temperature except mercury
it exhibits very different properties from a metal
What is proton electrical charge?
What is electron electrical charge?
What is neutron electrical charge?
They follow actinium with the atomic number 89 respectively
He explained that the positive protons and neutral neutrons are kept together by a strong binding energy as the electrons are orbiting around them
What element is Cl?