Use notes and ppts to answer each question this will be your study guide a. help make up the nucleus and have no charge
b. help make up the nucleus and are positively charged
c. are located outside of the nucleus and are negatively charged
d. are located outside of the nucleus and have no charge
If you found a Carbon 13 atom, you would know that
a. it has 13 protons c. it has 13 neutrons
b. it has 13 electrons d. it has 7 neutrons
What particles make up the nucleus?
a. electrons and neutrons b. electrons and protons
c. protons and neutrons d. electrons, protons, and neutrons
Neutrons are particles that
a. help make up the nucleus and have no charge
b. help make up the nucleus and are positively charged
c. are located outside of the nucleus and are negatively charged
d. are located outside of the nucleus and have no charge

The current model of the atom suggests that
a. proton clouds surround the nucleus
b. electron clouds surround the nucleus
c. electrons travel in definite paths around the nucleus
d. the exact path of a moving electron can be predicted
The mass number minus the atomic number is equal to the number of
a. protons and neutrons b. protons
c. protons and electrons d. neutrons
Mendeleev arranged the elements
a. density b. melting point c. how they look (appearance) d. atomic mass
Which of the following is NOT found on the periodic table?
a. the atomic number of each element b. the symbol of each element
c. the density of each element d. the atomic mass of each element
An atom of gold with 79 protons, 79 electrons, and 118 neutrons would have a mass number of
a. 39 b. 158 c. 197 d. 276
On the periodic table, a horizontal row is called
a. atomic mass b. family c. a group d. a period
Most metals are good conductors of
a. thermal energy b. electric current c. light energy d. both (a) and (b)
One property of most nonmetals is that they are
a. poor conductors of electric current b. shiny
c. flattened when hit with a hammer d. solid at room temperature
Which of the following is the MOST reactive?
a. alkali metal b. alkaline earth metal c. halogen d. noble gas
Each square on the periodic table includes an element’s
a. name, chemical symbol, and mass number
b. name, chemical symbol, and ion number
c. chemical symbol, mass number, and atomic mass
d. name, chemical symbol, atomic number, and atomic mass
17. An element’s properties can be predicted from its
a. number of isotopes b. location on the periodic table
c. number of neutrons d. atomic mass
18. An atom with the same number of protons, but a different number of neutrons is called a(n) _b__.
a. isotope b. ion c. isomer d. iodine
19. The first shell in an atomic drawing can hold a maximum of _8_ electrons.
a. 2 b. 4 c. 6 d. 8
20. Xenon has _18__ valence electrons.
a. 8 b. 12 c. 14 d. 18
21. Selenium is found in group __1__.
a. 1 b. 2 c. 15 d. 16
22. Strontium has _38_ neutrons.
a. 2 b. 38 c. 50 d. 58
23. The symbol for calcium is _Ca__.
a. Cm b. C c. Ca
24. The element bromine has _79__ electrons.
a. 7 b. 35 c. 79
25. The element helium has _8__ valence electrons.
a. 2 b. 4 c. 6 d. 8

1) Electrons involved in bonding between atoms are
a. valence electrons b. inside the nucleus
c. closest to the nucleus d. positively charged
2) Each family in the periodic table has its own characteristic properties based on the number of
a. neutrons b. valence electrons
c. protons d. ions
3) What is the greatest number of valence electrons an atom can have? With the exception of helium.
a. 2 b. 3 c. 8 d. 12
4) If atoms of a halogen nonmetal (Group 17) gains one electron, the atoms then have
a. no valence electrons b. 7 valence electrons
c. 8 valence electrons d. 17 valence electrons
5) When an atom loses an electron, it becomes a
a. positive ion b. negative ion
c. neutral ion d. neutral atom
6) An ionic bond is the attraction between
a. similarly charged ions b. oppositely charged ions
c. neutral ions d. neutral atoms
7) The element boron is directly above aluminum on the periodic table. Which statement about boron is true?
a.
Boron is in the same period as aluminum
b.
Boron is in the same group as aluminum and has 5 valence electrons
c.
Boron has 5 valence electrons and is in the same period as aluminum
d.
Boron is in the same group as aluminum and has 3 valence electrons
8) Magnesium bromide is an ionic compound with the chemical formula MgBr2. What does the “2” tell you?
a.
Bromide has a 2 charge.
b.
There are two magnesium ions to every bromide ion.
c.
There are two bromide ions for every magnesium ion.
d.
Bromide has a 2+ charge.
9) What is the chemical name for the compound with the formula Na2S?
a. sodium fluoride b. magnesium sulfide
c. lithium oxide d. sodium sulfide
10) In the chemical formula for an ionic compound, which item is written first?
a. positive ion b. negative ion
c. subscript d. charge

Respuesta :

Answer:

(I) it has 7neutrons

this is because the 13 is the mass number which is the atomic number plus the number of neutron .since the atomic number is 6 and the neutrons are7 the sum is 13

(Ii) protons and neutrons make up the nucleus

(iii) neutrons help make up the nucleus and have no charge/they're neutral

(iv) electrons move in definite paths around the nucleus.these paths are known as energy levels

(v) neutrons.this is because the atomic number is equal to the atomic number plus neutrons

(vi) the density of each element

(vii) 197 this is because the mass number is the sum of protons and neutrons

(viii)a period

(ix) thermal energy and electrical energy

(x) poor conductors of electricity

(xi) alkali metals

(xii)

(xiii)

(xiv)

(xv) it is in group 6-selenium

(xvi) it is in group 8-xenon

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