Question

chemistry
name: madison clarke
period: 4
date: oct 9th
grade: 11th
do now – atoms
directions: match the terms with the correct descriptions or fill in the blanks.
terms:

1. proton
2. neutron
3. electron
4. nucleus
5. isotope
6. atom

descriptions / blanks:
a. the central part of an atom that contains protons and neutrons. ________
b. a particle with a positive charge found in the nucleus. ________
c. a particle with no charge found in the nucleus. ________
d. a negatively charged particle that orbits the nucleus. ________
e. the smallest unit of matter that retains the properties of an element. ________
f. atoms of the same element with different numbers of neutrons. ________

Explanation:

A. The central part of an atom that contains protons and neutrons is the nucleus.
B. A particle with a positive charge found in the nucleus is a proton.
C. A particle with no charge found in the nucleus is a neutron.
D. A negatively - charged particle that orbits the nucleus is an electron.
E. The smallest unit of matter that retains the properties of an element is an atom.
F. Atoms of the same element with different numbers of neutrons are isotopes.

Answer:

A. Nucleus
B. Proton
C. Neutron
D. Electron
E. Atom
F. Isotope