PS.4 Periodic Table

A student receives a model of an atom that contains seven protons, neutrons, and electrons, and has an atomic mass of approximately 14. What procedure can the student use to identify the atom?

• The student can reference the periodic table and find the element that has an atomic number of 7, which represents the number of neutrons in the atom.

• The student can reference the periodic table and find the element that has an atomic number of 14, which represents the number of protons and neutrons in the atom.

• The student can reference the periodic table and find the element that has an atomic number of 14, which represents the number of electrons and neutrons in the atom.

• The student can reference the periodic table and find the element that has an atomic number of 7, which represents the number of protons in the atom.

Tags

NGSS.MS-PS1-1

The atomic number of an element that has 6 protons and 6 neutrons is —

• 6

• 12

• 3

• 9

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NGSS.MS-PS1-1

On the periodic table, the element sulfur is most like the element —

• oxygen (O)

• chlorine (Cl)

• phosphorous (P)

• calcium (Ca)

The element sodium has the chemical symbol —

• S

• Na

• Sn

• Sb

Tags

NGSS.MS-PS1-1

What is the chemical symbol of Hydrogen?

• 
  Hf

• H

• Hg

• He

Tags

NGSS.MS-PS1-1

Referring to the periodic table, what is true about neon?

• Neon will not bond with other elements.

• Neon is a very reactive metal.

• Neon is a very reactive nonmetal.

• Neon has two valence electrons.

What group of elements are also known as the halogens?

• Group 2

• Group 17

• Group 18

• Group 1

What distinguishes each element from all others, and gives it unique physical and chemical properties?

• The number of protons

• The element’s universal origin

• The number of neutrons

• The electron configuration

What is the chemical symbol of mercury?

• M

• Hg

• Gh

• H

Referring to the periodic table, the element calcium should have the most properties in common with —

• 
  chlorine (Cl)

• gold (Au)

• 
  magnesium (Mg)

• potassium (K)