Electrons

What is the location of the electron?

• the free floating negatively charged electron cloud
• the free floating positively charged electron cloud
• the very dense positively charged electron orbital
• the positively charged very dense nucleus

Tags

NGSS.MS-PS1-1

In a stable atom the amount of electrons is electron is equal to

• neutrons
• protons
• atomic mass
• neutrons + protons

Tags

NGSS.MS-PS1-1

What is the charge of the electron

• positive
• no charge
• negative
• neutral

Tags

NGSS.MS-PS2-3

What is the relative mass of the electron

• same mass as proton
• larger mass than protons and neutrons
• less than 1amu
• electrons don't have a mass

How many electrons does an atom with 8 protons have?

• 8
• 16
• 15.99
• 24

Tags

NGSS.MS-PS1-1

The first orbital can hold a maximum of how many electrons?

• 2
• 3
• 8
• 6

Tags

NGSS.MS-PS1-1

In a stable atom, the atomic number is equal to...

• neutrons
• electrons
• atomic mass
• what is a stable atom?

Tags

NGSS.MS-PS1-1

Which of the following best describes an electron?

• It has no charge and about the same mass as a proton
• It has a negative charge and much less mass than a proton
• It has a positive charge and much more mass than a neutron
• It has a negative charge and about the same mass as a neutron

What is the difference between the number of electrons in an atom of Calcium, Ca, and the number of electrons in an atom of Aluminum, Al?

• 20
• 7
• 13
• 27

Tags

NGSS.MS-PS1-1

What types of particles are found in the cloud surrounding the atom's nucleus?

• Positively charged particles and negatively charged particles
• Negatively charged particles only
• Neutral particles and positively charged particles
• Positively charged particles only

Tags

NGSS.MS-PS1-1