Atoms and Periodic Table Review

What is an atom?

• It is an element on the Periodic Table.

• is the smallest component of an element, characterized by a sharing of the chemical properties of the element and a nucleus with neutrons, protons and electrons.

• An atom is the largest component of an element, characterized by a sharing of the chemical properties of the element and a nucleus with neutrons, protons and electrons.

• An atom is the combination of electrons and protons.

Tags

NGSS.MS-PS1-1

On the Periodic Table of elements Groups are arranged in which direction, up and down or right to left?

(a)  

Vertical columns of elements that DO share chemical properties (react the same) because they have the same number of VALENCE ELECTRONS in their outer shells.

• Groups

• Periods

Horizontal rows of elements that share the same number of ENERGY LEVELS but DO NOT share chemical properties.

• Groups

• Periods

The periodic table is arranged by increasing ______ ______, which is equal to the number of protons.

• atomic mass

• atomic number

As you go down the Periodic Table the size and mass of the atoms _________.

• increases

• decreases

• cannot be determined

The ______ are located on the left side of the zig-zag 'staircase' on the Periodic Table. (except for Hydrogen)

• metals

• non-metals

• metalloids

The ___________ are located on the right side of the zig-zag 'staircase' on the Periodic Table (except for Hydrogen)

• metals

• non-metals

• metalloids

The __________ are touching or bordering the zig-zag 'staircase' on the Periodic Table.

• metals

• non-metals

• metalloids

An atom with atomic number 6 would have how many protons 

• 6
• 12
• 3
• cannot be determined 

Tags

NGSS.MS-PS1-1