Atoms and the Periodic Table

Front

Who discovered the positive nucleus and theorized that atoms are mostly empty space?

Back

Ernest Rutherford

Front

Theorized that all matter is composed of small, indivisible (cannot be broken down) particles called atoms.

Back

John Dalton

Tags

NGSS.HS-PS1-7

Front

Discovered regions with high probability of finding an electron; electron cloud model

Back

Erwin Schrodinger

Front

Who discovered the electron and called them corpuscles?

Back

J.J. Thomson

Front

Discovered that electrons occupy specific orbitals around the nucleus; planetary model

Back

Niels Bohr

Front

Elements can be identified by:
- their atomic number
- their number of protons
- their number of electrons
- all of the above

Back

all of the above

Front

Elements are organized in the periodic table based on increasing:

• atomic number
• atomic models
• atomic nucleus
• atomic orbital

Back

atomic number

Front

Groups in the periodic table are

Back

columns

Front

Periods in the periodic table are: rows, columns, atomic numbers, mass numbers

Back

rows

Front

Characteristics of metals: solids at room temperature, ductile, malleable, shiny, good conductors, can be solid, liquid, or gas at room temperature, dull, brittle, insulators.

Back

solids at room temperature, ductile, malleable, shiny, good conductors