A&p 1 Exam 1
56 Questions
| Attempts: 1271
Chemistry
Questions and Answers
- 1.What bond has 2 or more atoms that share electrons rather than gaining or losing them
- A.
Ionic bond
- B.
Covalent bond
- C.
Polar bond
- 2.Force of attraction that holds together ions with opposite carge...
- A.
Ionic bond
- B.
Polar bond
- C.
Covalent bond
- 3.An atom or group of atoms with unpaird electron in the outer most shell
- A.
Isotopes
- B.
Cation
- C.
Free radical
- 4.a substance that contains atoms of 2 or more different elements
- A.
Atom
- B.
Compound
- C.
Nucleus
- 5.Two or more atoms share electrons
- A.
Ion
- B.
Compound
- C.
Molecular
- 6.A negative charged ion
- A.
Anion
- B.
Cation
- 7.A positive charged ion
- A.
Anion
- B.
Cation
- 8.An atom that has a positive or negative charge because it has unequal number of protons and electrons
- A.
Cation
- B.
Anion
- C.
Ion
- 9.The smallest of matter that retains the properties and characteristic of the element
- A.
Atom
- B.
Cell
- C.
Ion
- 10.Formation of new cells for tissue growth repair or replacement; the production of all new individual
- A.
Digestive
- B.
Respiratory
- C.
Reproduction
- 11.Give rise to cells that under go differentiation
- A.
Stem cells
- B.
Compound
- C.
Molecular
- 12.Atoms of a molecule are held together by forces of attraction.
- A.
Chemical bond
- B.
Covalent bond
- C.
Ionic bond
- 13.Valence electrons are thos in the outermost shell
- A.
Protons
- B.
Valence shell
- C.
Neutrons
- 14.An electrons state of potential energy
- A.
Ions
- B.
Energy level
- C.
Isotopes
- 15.Atoms of an element have the same number of protons but may differ in number of neutrons. most are stable but some are radioactive giving off particles and energy.
- A.
Isotopes
- B.
Atom
- C.
Cells
- 16.Form by interaction between 2 different atoms.
- A.
Ions
- B.
Anion
- C.
Compound
- 17.Atoms share electrons. written as molecular formula showing the number of atoms of each element.
- A.
Isotopes
- B.
Molecular
- C.
Ions
- 18.Remove an electron
- A.
Anion
- B.
Cation
- C.
Ion
- 19.Add electrons
- A.
Cation
- B.
Ion
- C.
Anion
- 20.An atom that gave up or gained an electron. written with its chemical symbol and (+) or (-).
- A.
Ions
- B.
Anion
- C.
Cation
- 21.The sum of protons plus neutrons in the nucleus.
- A.
Mass number
- B.
Atomic number
- C.
Atom
- 22.Number of protons
- A.
Atom
- B.
Mass number
- C.
Atomic number
- 23.The smallest unit of matter that still retains the properties of an element.
- A.
Atom
- B.
Ion
- C.
Isotopes
- 24.Normal equilibrium of body processes are disrupted.
- A.
Homeostasis
- B.
Homeostasis imbalance
- C.
Compounds
- 25.Response strengthens or reinforces the change.
- A.
Positive feedback
- B.
Negative feedback