Atoms and Elements, The Nucleus

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

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

• nucleus 
• electron cloud
• core 
• center 

An atom with atomic number 6 would have how many protons 

• 6
• 12
• 3
• cannot be determined 

Tags

NGSS.MS-PS1-1

What does the 1.00794 stand for?

• Hydrogen
• Atomic number
• Atomic mass
• Atomic explosion

Tags

NGSS.MS-PS1-1

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

• Proton
• Neutron
• Electron
• Quark

Which substance is made when two or more different elements are chemically combined?

• Element
• Mixture
• Compound
• Solids

An element is considered to be which type of substance?

• pure substance
• compound
• mixture
• molecule

Which of the following statements are characteristics of an element?

I.   Made from a mixture
II.  a pure substance
III. represented by a symbol
IV. make up matter on Earth

• I,II
• I,IV
• II,IV
• II,III,IV

What part of an atom is NEGATIVELY charged?

• protons
• neutrons
• electrons
• atoms

Which part of an atom is POSITIVELY charged?

• protons
• neutrons
• electrons
• atoms