Periodic Table and Energy

Atoms of elements in group 1 have ____________.

• one electron in their outermost energy level

• two electrons in their outermost energy level

• seven electrons in their outermost energy level

• eight electrons in their outermost energy level

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NGSS.HS-PS1-1

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The atoms along the staircase are called 

• metals
• nonmetals
• metalloids
• noble gases

Tags

NGSS.HS-PS1-1

The atoms of elements belonging to the same group of periodic table have the same

• number of protons.

• number of electrons.

• number of neutrons.

• number of electrons in the outermost shell.

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NGSS.HS-PS1-1

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The elements which occupy the middle block (d) in the periodic table are called ................ elements.

• transition

• alkali

• alkaline earth

• noble

In the periodic table, the elements which are similar in their Chemical & physical properties are located in the same ................

• period

• group

• nucleus

• energy level

Tags

NGSS.HS-PS1-1

Choose which of the following position is correct for Neon:

• Period : 2

  Group : 17

  p-block

• Period : 2

  Group : 18

  s-block

• Period : 2

  Group : 18

  p-block

Tags

NGSS.HS-PS1-1

The chemical properties of calcium

(₂₀ Ca) are similar to those of .......................

• ₁₉K

• ₁₂Mg

• ₂₅Mn

• ₃Li

Tags

NGSS.HS-PS1-1

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Bromine has the condensed electron configuration of [Ar]4s² 3d¹⁰ 4p⁵. Choose the correct position of Br in the periodic table.

• Group: 15

  Period : 4

  d-block

• Group: 17

  Period: 4

  d-block

• Group : 17

  Period : 4

  p-block

Tags

NGSS.HS-PS1-1

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What atom matches this electron configuration?
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰

• Zinc
• Copper
• Nickel
• Germanium

Tags

NGSS.HS-PS1-1

What electron configuration matches an oxygen atom?

• 1s²2s²2p⁶3s2, 3p⁶4s²3d¹⁰4p⁵
• 1s²2s²2p⁴
• 1s²2s²2p⁶
• 1s²2s²2p⁶3s²3p⁶4s²3d¹

Tags

NGSS.HS-PS1-1