Atoms, Periodic Table and Bonding

A substance that contains only one type of atom is a(n)

• compound

• element

• mixture

Within each _________ in the periodic table, elements have similar properties because they have the same number of valence electrons.

• Group or Family

• Period (Row)

The number of ________________ in the atom of an element determines its chemical properties.

• Protons

• Valence Electrons

• Neutrons

• Atomic Number

Tags

NGSS.MS-PS1-1

Periods are __________ and Groups are ____________

• columns, rows

• rows, columns

Noble gases are in group...

• 1

• 2

• 17

• 18

What is at the center of every atom?

• An electron

• A compound

• A nucleus

• A molecule

Tags

NGSS.MS-PS1-1

Which two particles make up the nucleus of an atom?

• protons and electrons
• protons and neutrons
• molecules and compounds
• neutrons and electrons

Which of the following cannot be broken down into something simpler?

• A compound
• An element
• A mixture
• A chemical formula

Tags

NGSS.MS-PS1-5

What is the chemical symbol for the element Silicon

• S

• Si

• si

• Sl

A proton is....

• A negatively charged subatomic particle
• A positively charged subatomic particle
• A neutrally charged subatomic particle
• The only subatomic particle located in the nucleus

Tags

NGSS.HS-PS1-8