Electrons and PTable Trends Exam

Identify the element with the following electron configuration: 1s²2s²2p³.

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NGSS.HS-PS1-1

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Which of the following statements is true about anions?

• Typically nonmetals

• Typically metals

• Tend to share electrons

• Tend to have positive oxidation numbers

• They are really fun at parties

Two oxygen atoms have a difference in electronegativity of 0. What type of bond will they form?

• Non-Polar Covalent

• Polar covalent

• Ionic

• They will not form a bond.

Consider the periodic trend seen for ionic radius. Atoms that lose electrons tend to become ________. Atoms that gain electrons tend to become ________.

• smaller; smaller

• larger; smaller

• smaller; larger

• larger; larger

Which of the following groups of elements would most likely have the least electronegativity?

• Halogens

• Alkali metals

• Alkaline earth metals

• Transition metals

• Transuranium elements

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NGSS.HS-PS1-1

Why do nonmetals tend to form anions?

• They have high ionization energy

• They have low electronegativity

• They gain electrons easily

• They lose electrons easily.

What is electron shielding?

• The attraction between electrons and the nucleus

• The repulsion between electrons

• The blocking of nuclear charge by inner electrons

• The sharing of electrons between atoms.

What type of bond is formed between phosphorous and sulfur based on their electronegativities?

• Ionic bond

• Covalent bond

• Metallic bond

• Hydrogen bond

What happens to electrons in a covalent bond?

• They are transferred

• They are shared

• They are lost

• They are gained

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NGSS.HS-PS1-1

Which of the following elements is most likely to form a cation?

• Sodium (Na)

• Chlorine (Cl)

• Oxygen (O)

• Phosphorous (P)

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NGSS.HS-PS1-1

NGSS.HS-PS1-2