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Atoms, Ions, and Molecules

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Biology Quiz on basics of Chemistry (Section 2.1)

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Questions 13

Answers

1
How do ions form?
Atoms combine to make a larger atom.
Atoms form covalent bonds.
Two atoms share electrons.
Atoms gain or lose electrons.
2
What is the negatively charged particle found in an atom called?
protons
neutrons
prions
electrons
3
Which particle determines the properties of an element?
quarks
protons
neutrons
electrons
4
What is an example of an element?
Neon
Gold
Steel
Kryptonium
5
Which of the following cannot be broken down by ordinary chemical means?
molecule
bond
element
compound
6
What distinguishes one element from another?
The number of neutrons.
The number of electrons.
The number of protons.
The shape.
7
How does an ion become negatively charged?
It loses electrons.
It gains electrons.
8
The smallest basic unit of matter is the
cell.
atom.
compound.
molecule.
9
An ion is formed when an atom gains or loses
protons
electrons
bonds
neutrons
10
What is a compound?
two atoms of a single element bonded together
separate atoms of multiple elements in varying ratios
atoms of different elements bonded in certain ratios
a molecule of two oxygen atoms
11
Atoms connected by covalent bonds share
pairs of electrons
ionic compounds
hydrogen ions
carbon and oxygen
12
Which phrase best describes atoms?
single-celled organism
smallest basic units of matter
positively charged particles
parts of a nucleus
13
Atoms in molecules share pairs of electrons when they make
covalent bonds
hydrogen bonds
ionic bonds
specific heat