Duplicate of Atomic Model History and Bohr

Question 1

Which substances, when mixed together, maintain their original physical properties?

Accepted Answer

wood chips, water, sand

Question 2

Which part of the atom has a negative charge?

Accepted Answer

electron

Question 3

What is the electronic configuration of Titanium (22 electrons)

Accepted Answer

[Ar]4s23d2

Question 4

Which part of the atom has a positive charge?

Accepted Answer

proton

Question 5

Why did Niels Bohr use hydrogen to generate his model of the atom?

Accepted Answer

Hydrogen is a simple system with a single electron and a single proton

Question 6

Cathode rays are...

Accepted Answer

rays of fats-moving electrons.

Question 7

Which scientist is credited with the discovery of the neutron?

Accepted Answer

James Chadwick

Question 8

Everything that takes up space and has mass is

Accepted Answer

matter

Question 9

How can you determine the number of electrons in each of the elements?

Accepted Answer

Same as the number of protons

Question 10

Which part of the atom has a neutral charge?

Accepted Answer

neutron

Question 11

How many neutrons are there in a single atom of Fluorine?

Accepted Answer

9

Question 12

Which of these is a metal?

Accepted Answer

Beryllium

Question 13

Which element is a Semi-metal?

Accepted Answer

As

Question 14

Where are the non-metals found on the periodic table?

Accepted Answer

Right hand side

Question 15

A material with definite shape and volume is

Accepted Answer

solid

Question 16

What does the atomic number of an element directly relate to?

Accepted Answer

number of protons

Question 17

All of the following are examples of containers filled with mixtures except?

Accepted Answer

A glass filled with water

Question 18

what is the electronic configuration of 17Cl?

Accepted Answer

1s22s22p63s23p5

Question 19

Which process is an example of a physical change?

Accepted Answer

Cutting carrots into pieces and mixed in a salad

Question 20

The periodic table is divided into 4 blocks, identifying the sublevel of energy

Accepted Answer

True

Question 21

Stars are hot glowing balls of gas made of hydrogen and helium.

Accepted Answer

True

Question 22

Where are metals found on the periodic table?

Accepted Answer

Left hand side

Question 23

Which scientist is credited with the discovery of the nucleus with a positive charge?

Accepted Answer

Ernest Rutherford

Question 24

Energy level

Accepted Answer

A region of an atom in which electrons are found

Question 25

Which of the four Physicists was first to work with cathode rays?

Accepted Answer

Thomson

Question 26

Who performed the famous 'gold foil experiment'?

Accepted Answer

Rutherford

Question 27

Which greek philosopher pondered the smallest small? Determined that there had to be an atomos.

Accepted Answer

Democritus

Question 28

How many orbitals are in the p subenergy level?

Accepted Answer

3

Question 29

Which scientist is credited with the discovery of the atom?

Accepted Answer

John Dalton

Question 30

Did J.J. Thomson discover the subatomic particle called the neutron?

Accepted Answer

False

Question 31

Molecule or Compound?

Accepted Answer

Compound

Question 32

Which part of the atom does not contribute (significantly) to the atoms mass?

Accepted Answer

electron

Question 33

Which is a non-metal

Accepted Answer

Hydrogen

Question 34

Which of the following is an example of a heterogeneous mixture?

Accepted Answer

sand

Question 35

Elements that have chemical and physical properities of both metals and nonmetals are _____.

Accepted Answer

metalloids

Question 36

Molecule or Compound?

Accepted Answer

Molecule

Question 37

The atomic mass depends on two subatomic particles Are these particles protons and electrons?

Accepted Answer

False

Question 38

During radioactive decay, atomic nuclei of unstable isotopes _____.

Accepted Answer

give off nuclear radiation

Question 39

Which element is Metal?

Accepted Answer

Au

Question 40

Filled subenergy level is

Accepted Answer

stable

Question 41

Ernest Rutherford

Accepted Answer

discovered proton

Question 42

Which of the following is NOT a property of metals?

Accepted Answer

brittle

Question 43

Which of these is a metalloid?

Accepted Answer

Boron

Question 44

Which of the following is an example of a homogeneous mixture?

Accepted Answer

air

Question 45

Ernest Rutherford. . .

Accepted Answer

Gold foil experiment

Question 46

Electronic configuration

Accepted Answer

The arrangement of electrons in each electron shell

Question 47

Neils Bohr proposed his atomic model based on evidence using hydrogen atom&#x27;s

Accepted Answer

emission spectrum

Question 48

Which scientist placed the nucleus at the center of the atom and electrons around in orbitals?

Accepted Answer

Niels Bohr

Question 49

Oxidation is a chemical change.

Accepted Answer

True

Duplicate of Atomic Model History and Bohr

Questions 49

Duplicate of Atomic Model History and Bohr

Questions 49