11 TH GRADE DIAGNOSTIC EXAM 23

Last updated over 3 years ago

15 questions

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Matter consists on particles called

Elements

Atoms

Molecules

Atoms and molecules

The parts of the atom are:

Atomic number

Electrons

Protons, neutrons and electrons

Molecules

What type of charge do protons have?

Neutral

Positive

Negative

What type of charge do neutrons have?

Neutral

Negative

Positive

What contains the nucleus of an atom?

Protons and electrons

Protons and neutrons

Electrons and neutrons

What moves around the nucleus of an atom?

Electrons

Protons

Neutrons

Electrons

Protons

Neutrons

How is organized the modern periodic table?

The chemical elements are arranged in order of increasing atomic number

The chemical elements are arranged randomly

The chemical elements are arranged in order of decreasing atomic number

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What is the atomic number of silver?

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What is the atomic mass for silver?

How are periods arrange in the periodic table?

Randomly

In vertical rows

In horizontal rows

The alkali metal atoms at the far left of the periodic table are the

Largest

Smallest

None of the above

This elements are highly reactive, and they can be harmful or lethal to biological organisms in sufficient quantities. This reactivity is due to high electronegativity and high effective nuclear

Noble gases

Halogens

Alkali metals

What kind of bond forms when the difference between the electronegativities of two atoms is too small for an electron transfer to occur to form ions?

metallic

Ionic

covalent

What kind of bond forms when the valence (outermost) electrons of one atom are transferred permanently to another atom?

ionic

metallic

covalent

Matter consists on particles called

Elements

Atoms

Molecules

Atoms and molecules

The parts of the atom are:

Atomic number

Electrons

Protons, neutrons and electrons

Molecules

What type of charge do protons have?

Neutral

Positive

Negative

What type of charge do neutrons have?

Neutral

Negative

Positive

What contains the nucleus of an atom?

Protons and electrons

Protons and neutrons

Electrons and neutrons

What moves around the nucleus of an atom?

Electrons

Protons

Neutrons

Electrons

Protons

Neutrons

How is organized the modern periodic table?

The chemical elements are arranged in order of increasing atomic number

The chemical elements are arranged randomly

The chemical elements are arranged in order of decreasing atomic number

What is the atomic mass for silver?

How are periods arrange in the periodic table?

Randomly

In vertical rows

In horizontal rows

The alkali metal atoms at the far left of the periodic table are the

Largest

Smallest

None of the above

This elements are highly reactive, and they can be harmful or lethal to biological organisms in sufficient quantities. This reactivity is due to high electronegativity and high effective nuclear

Noble gases

Halogens

Alkali metals

What kind of bond forms when the difference between the electronegativities of two atoms is too small for an electron transfer to occur to form ions?

metallic

Ionic

covalent

What kind of bond forms when the valence (outermost) electrons of one atom are transferred permanently to another atom?

ionic

metallic

covalent