Atoms and Elements

Susan, Nancy, and Joan are working on a science project about atoms. Susan believes that the positive particles of an atom are electrons. Nancy thinks they are the nucleus. Joan insists they are neutrons. Who among them is correct?

• Susan with electrons.

• Nancy with nucleus.

• Joan with neutrons.

• None of them

Tags

NGSS.MS-PS1-1

Susan, Marsha, and Tim are studying Earth's structure for their geography class. They learn about the core of the Earth, where heavy elements are located. What is this region called?

• nucleus. 

• electron cloud.

• electron orbit. 

• electron energy levels. 

Dave, Jeremy, and Susan are discussing their chemistry homework. Dave asks, 'In the context of a carbon atom with an atomic number 6, how many protons would it have in its nucleus?'

• 6

• 12

• 3

• cannot be determined 

Tags

NGSS.MS-PS1-1

Chelsey, Joe, and Jeremy are discussing the carbon content in a diamond ring. They are curious about the number of electrons in a carbon atom, which has an atomic number of 6. How many electrons would a carbon atom have? 

• 6

• 12

• 3

• cannot be determined 

Tags

NGSS.MS-PS1-1

Jerry, Parker, and Scott are visiting a science museum and come across an exhibit about atomic structure. They find a display that talks about particles in an atom that are neutral and have no charge. Can you help them figure out what these particles are called?

• negatrons 

• electrons 

• neutrons 

• protons 

Mary, Scott, and Emily are discussing the structure of an atom during their chemistry class. Mary suggests that neutrons carry a negative charge. Is Mary's statement correct?

• True

• False

• depends on the element

• depends on the atom

Tags

NGSS.MS-PS1-1

Jessica, Tim, and Mary are studying chemistry together. They are discussing the structure of an atom and want to identify the particle that orbits around the nucleus. What is it?

• Proton

• Neutron

• Electron

• Quark

Tags

NGSS.MS-PS1-1

Susan, Dave, and Scott are working on a chemistry project about elements. They find the number 1.00794 in their research. What does this number represent in their chemistry project?

• Hydrogen

• atomic number

• atomic mass

• atomic explosion

Tags

NGSS.MS-PS1-1

Mary, Joe, and Susan are studying chemistry and come across the modern periodic table. They are curious about the criteria used to arrange elements in it. Can you help them understand the basis for this arrangement?

• atomic mass

• atomic number

• electrons

• type of charge

Chelsey and Susan were baking a cake and came across a recipe that required an ingredient with a specific number of protons. Can you help them determine the number of protons that this element contains?

• 14

• 7

• 21

• None of the above

Tags

NGSS.MS-PS1-1