Upgrade to remove ads
7th grade Chemistry
Terms in this set (19)
Periodic law states that properties of elements are periodic functions of their.......
Name of element, symbol, atomic number and mass
What info do you find in an element display on the periodic table?
Vertical columns of elements in the periodic table
Nonmetals are usually ____________________conductors of electricity
Who discovered atoms 2000 years ago?
Who was first to develop the periodic table by atomic mass?
Who further developed the periodic table by atomic number and died at 27?
Proton (+), Neutron (neutral), Electron (-)
Name three subatomic particles and their electric charge(s).
Which subatomic particle weighs the least?
Highly active metal
Each period of the element table begins on the left with a _____________________.
Brittle element that is not a good conductor of heat and electricity.
Nonmetals tend to ___________________ electrons when forming compounds.
Chemical and physical properties of the elements are periodic functions of their number.
Horizontal rows on element tables are called.........
Weak force, strong force, electromagnetic force, and gravity (the strongest)
Name the 4 forces that account for behavior of subatomic particles.
Neutrons and Protons
Which subatomic particles weigh 1 amu?
Modern atomic model is based on ...............
Atoms believed to exist, built on Democritus theory that atoms are indivisible and indestructible, atoms of same elements are the same, atoms of different elements are different. Atoms join to make compounds.
Describe the Dalton model
Discovered electrons (corpuscle), negatively charged particle and hypothesized that a positively charged particle existed.
Describe Thompson's plum pudding model
THIS SET IS OFTEN IN FOLDERS WITH...
Physical Science - Chemistry Full Set
Chemistry 7th Grade
BASIS DC 7th Grade Chemistry
7th Grade Chemistry Unit Review
YOU MIGHT ALSO LIKE...
CHAPTER 3 REVIEW LESSONS 1/2
Grade 8- Chapter 3, lessons 1&2
Prentice Hall Science Explorer Chemical Building B…
OTHER SETS BY THIS CREATOR
Lab Safety quiz
Mr. Williams Government Terms
Fun with Freddy math terms
William's Government 7th Grade