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name ______ date ______ lesson: history/periodic table/basic atomic str…

Question

name ____ date ____
lesson: history/periodic table/basic atomic structure unit test

  1. which of the following is true of all the statements in the previous question (metals)?

i. they are all metals
ii. they all have two electrons in their outermost shell
iii. they attempt to lose electrons
iv. they all have similar chemical properties
a. i and ii only
b. i, iii, and iv only
c. i, ii, and iii only
d. iii, ii, and iv only

  1. the nucleus is the center of an atom. it consists of:

a. neutrons alone
b. neutrons and electrons
c. protons and neutrons
d. protons and electrons

  1. democritus gave the basic particle the name atomos, which means:

a. invisible or unseen
b. simple or uncomplicated
c. little or small
d. not visible or uncuttable

  1. isotopes are atoms of the same element that have a different number of ______.

a. nucleides
b. protons
c. electrons
d. neutrons

  1. what did ernest rutherford conclude from his experiment?

a. all of the particles in an atom were floating around in electron clouds.
b. all of the particles in an atom were tightly packed into a dense ball.
c. atoms had dense nuclei that were positively charged.
d. atoms were composed entirely of negatively charged particles.

  1. most of the volume of an atom is taken up by the ____ and most of the mass of an atom is found in the ____.

a. electron clouds, nucleus
b. nucleus, electron clouds
c. electron clouds, electron clouds
d. nucleus, nucleus

  1. metals tend to appear on the ____ side of the periodic table with the exception of ____ which is a nonmetal.

a. left, lithium
b. left, hydrogen
c. right, neon
d. right, helium

  1. if an atom has 6 electrons outside of its nucleus, which combination of protons and neutrons would result in a neutral atom?

a. 1 proton, 1 neutron
b. 6 protons, 6 neutrons
c. 3 protons, 3 neutrons
d. 12 protons, 17 neutrons

  1. john dalton developed many scientific theories. in one of the theories, dalton states that:

a. compounds are formed through the combination of two nonmetals.
b. only atoms of the same element can combine to form molecules.
c. electrons and protons are not contained in the nucleus.
d. atoms of different elements are different.

  1. how did niels bohr’s model of an atom differ from that of his predecessor, ernest rutherford?

a. rutherford’s model indicated that atoms contained a nucleus at their center.
b. bohr’s model indicated that electrons move in orbits around the nucleus.
c. bohr’s model indicated that an atom contains more protons than electrons in its nucleus.
d. rutherford’s model indicated that the nucleus had a positive charge, while bohr’s model did not.

  1. ... (text cut off)

Explanation:

Brief Explanations

The problem is about atomic structure and related chemistry concepts. The subfield under Natural Science is Chemistry, as these questions deal with atoms, isotopes, periodic table, and atomic theories, which are core topics in Chemistry.

Answer:

Chemistry (under Natural Science)