Unit 1 Chemistry- The Atom and Periodic Table

Which two subatomic particles are found in the NUCLEUS of at atom?

• protons & nuetrons
• protons & electrons
• neutrons & electrons
• electrons & protons

The subatomic particle with a neutral charge is:

• protons
• electrons
• neutrons
• cloud

If an element has 6 protons, 7 neutrons, and 6 electrons, what type of charge does the element have?

• positive
• negative
• neutral
• imaginary

What gives an atom mass?

• Protons & electrons in the nucleus
• electrons in the cloud
• protons & neutrons in the nucleus
• Protons & electrons in the cloud

the area around the nucleus of an atom where electrons are found

• Bohr Model

• Atom

• Electron Cloud

the basic building block of matter that makes up everything

• Bohr Model

• Atom

• Electron Cloud

Tags

NGSS.MS-PS1-1

a set of characters (letters) that are used to represent an element

• Atomic Mass

• Atomic Number

• Valence Electrons

• Chemical Symbol

the name given to the vertical columns of elements on the Periodic Table that give information on the valence electrons of each atom

• Group or Family

• Period

• Periodic Table

• Reactivity

the name given to the horizontal rows of elements on the Periodic Table that tell you the number of shells or clouds of each atom.

• Group or Family

• Period

• Periodic Table

• Reactivity

What is the chemical symbol for Sodium?

• S

• So

• Na

• Ca