Atoms

The positive particles of an atom are

• electrons

• isotops

• neutrons

• protons

the central region of an atom where its neutrons and protons are is its 

• nucleus 
• electron cloud
• core 
• center 

Tags

NGSS.MS-PS1-1

True or False? Neutrons have a negative charge

• True
• False

Tags

NGSS.HS-PS1-8

A particle that moves around the nucleus is a(n)...

• Proton
• Neutron
• Electron
• Quark

Tags

NGSS.MS-PS1-1

What does the word atom mean?

• Indivisible, cannot be split

• Very Tiny

• A single tom

• Fundamental

What is an isotope? 

• A charged atom
• An atom with different amounts of neutrons
• An atom with different amounts of protons
• A neutral atom

Tags

NGSS.MS-PS1-1

Which of the following particle pairs has approximately the same mass?

• protons and neutrons
• protons and electrons
• neutrons and electrons
• protons, neutrons and electrons

A carbon isotope consists of 6 protons, 6 electrons and 8 neutrons.  What is the mass number for this isotope?

• 12
• 14
• 6
• 8

Tags

NGSS.MS-PS1-1

Two atoms of the same element but with different mass numbers are called________

• electrons
• isotopes
• variables
• electron cloud

Tags

NGSS.HS-PS1-8

Which statement about the atomic nucleus is correct?

• The nucleus is made of protons and neutrons and has a negative charge
• The nucleus is made of protons and neutrons and has a positive charge
• The nucleus is made of electrons and has a positive charge
• The nucleus is made of electrons and has a negative charge

Tags

NGSS.MS-PS1-1