04-02b Atoms & Bonds

What is identified by the arrow?

• electron

• proton

• neutron

• nucleus

What is identified by the arrow?

• electron

• neutron

• proton

• nucleus

What is identified by the arrow?

• proton

• neutron

• electron

• nucleus

What is identified by the arrow?

• proton

• neutron

• electron

• nucleus

If an atom has 39 protons in the nucleus, how many electrons will it have orbiting the nucleus?

How many electrons are in the nucleus of an atom with an atomic number of 22?

How many neutrons are in an atom that has an atomic mass of 36 and an atomic number of 25?

Use the information given of the element Carbon to pick out which is its atom model.

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What bond is found between the hydrogen and the oxygen of one water molecule?

• polar covalent bond

• nonpolar covalent bond

• hydrogen bond

• ionic bond

Which best describes an ionic bond?

• a pair of electrons is shared between two atoms

• a pair of electrons is unequally shared between two atoms

• a pair of electrons are equally shared between two atoms

• one atom gives up an electron to another and the positive ion is then attracted to the negative ion