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chapter 4- level H

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1.
1 point
The atomic number of an atom is:
2.
1 point
Changing the number of neutrons of an atom changes its:
3.
1 point
What is gained or lost electrons?
4.
1 point
An element is determined by the number of:
5.
1 point
Write the element for an atom with 32 protons and 38 neutrons
6.
1 point
According to atomic theory, electrons are usually found:
7.
1 point
What is the positive charged particle in an atom?
8.
1 point
Neils Bohr described electrons as
9.
1 point
Who concluded that when an element is divided, the eventual result is an invisible particle called an atom.
10.
1 point
The three basic components of an atom are:
11.
1 point
___________ proposed that atoms of different elements can have similarities, but are not completely identical.
12.
1 point
The nucleus of an atom consists of:
13.
1 point
Who was the first civilization to think of the nature of matter?
14.
1 point
Atoms with different number of neutrons is called?
15.
1 point
Which two particles would be attracted to each other?
16.
1 point
The number of protons in Al3+ is
17.
1 point
Is the proton contained in the nucleus?
18.
1 point
When you change the number of electrons on an atom, you produce a different:
19.
1 point
The number of protons in N3- is
20.
1 point
The symbol, Fe3+, has
21.
1 point
Which particles have approximately the same size and mass as each other?
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