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Atoms, Ions, and Molecules Flashcards | StudBud

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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 14

Answers

1
Atoms in molecules share pairs of electrons when they make
covalent bonds
hydrogen bonds
ionic bonds
specific heat
2
Which phrase best describes atoms?
parts of a nucleus
smallest basic units of matter
positively charged particles
single-celled organism
3
How do ions form?
Two atoms share electrons.
Atoms combine to make a larger atom.
Atoms gain or lose electrons.
Atoms form covalent bonds.
4
Which particle determines the properties of an element?
protons
neutrons
quarks
electrons
5
What is a compound?
two atoms of a single element bonded together
atoms of different elements bonded in certain ratios
separate atoms of multiple elements in varying ratios
a molecule of two oxygen atoms
6
How does an ion become negatively charged?
It loses electrons.
It gains electrons.
7
The smallest basic unit of matter is the
cell.
atom.
compound.
molecule.
8
Atoms connected by covalent bonds share
ionic compounds
hydrogen ions
pairs of electrons
carbon and oxygen
9
An ion is formed when an atom gains or loses
electrons
protons
neutrons
bonds
10
Which of the following cannot be broken down by ordinary chemical means?
element
molecule
compound
bond
11
What distinguishes one element from another?
The shape.
The number of protons.
The number of neutrons.
The number of electrons.
12
How does an ionic bond form?
Two atoms combine as one.
Positive and negative ions attract
Atoms share electrons.
Electrons are exchanged between atoms.
13
What is an example of an element?
Neon
Steel
Gold
Kryptonium
14
What is the negatively charged particle found in an atom called?
prions
neutrons
electrons
protons