Chemistry Finals

What is covalent bonding?

• The sharing of electrons

• The giving and taking of electrons

• The creation of new electrons

• The destruction of new electrons

What is ionic bonding?

• The sharing of electrons

• The giving and taking of electrons

• The creation of new electrons

• The destruction of new electrons

• 15

• 5

• 10

• 3

What happens when an atom loses an electron?

• It becomes super charged.

• It becomes positively charged.

• It becomes negatively charged.

• It becomes neutrally charged.

What law states that mass is neither created nor destroyed during ordinary chemical reactions or physical changes?

• Law of atomic truths

• Law of permanent existence

• Law of conservation of mass

• Law of definite proportions

What happens when an atom loses an electron?

• It becomes a new element.

• It becomes a cation.

• It becomes an isotope.

• It becomes an anion.

What happens when an atom gains an electron?

• It becomes a new element.

• It becomes a cation.

• It becomes an isotope.

• It becomes an anion.

How does a normally neutral atom become electrically charged?

• It cannot be electrically charged.

• It gains or loses a neutron.

• It gains or loses a proton.

• It gains or loses an electron.

An atom is usually neutrally charged. What do you call an atom that becomes electrically charged?

• Wavelength

• Mole

• Isotope

• Ion

Which element does not belong to any group in the periodic table of elements?

• Chlorine

• Gold

• Neon

• Hydrogen